7053
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 9408
- Proper Divisor Sum (Aliquot Sum)
- 2355
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 4700
- Möbius Function
- 1
- Radical
- 7053
- Omega Function (Ω)
- 2
- Little Omega Function (ω)
- 2
Special
- Factorial
- no
- Catalan Number
- no
- Bell Number
- no
- Motzkin Number
- no
- Primorial
- no
Figurate Numbers
- Fibonacci Number
- no
- Triangular Number
- no
- Perfect Square
- no
- Perfect Cube
- no
- Pentagonal Number
- no
- Hexagonal Number
- no
- Lucas Number
- no
- Tetrahedral Number
- no
- Pell Number
- no
- Tribonacci Number
- no
- Pronic Number
- no
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 119
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- Squarefree Number
- yes
- Prime Power
- no
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Discriminants of totally real quartic fields.at n=27A023680
- a(n) = floor( sqrt(2) * (3/2)^n ).at n=21A033320
- a(n) = Xpower(n,3).at n=29A048732
- Third row of number array A082105.at n=41A082109
- Semiprimes that are the sum of the first n semiprimes for some n.at n=22A092190
- Number of unlabeled 10-gonal 2-trees with n 10-gons.at n=6A094654
- Number of numbers not divisible by 10 that stay multiples of themselves when freed of their last n digits.at n=2A095256
- Consider the family of ordinary multigraphs. Sequence gives the triangle read by rows giving coefficients of polynomials arising from enumeration of those multigraphs on n edges.at n=31A098233
- Cumulative sum of triple factorial numbers a(n) = n!!! (A007661).at n=13A114347
- Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (-1, 1, 1), (0, -1, 1), (1, 0, -1), (1, 1, 1)}.at n=7A149784
- a(n) = 9*n^2 - 3.at n=27A157872
- Numbers k such that k^2+4, k^2+8, and k^2+10 are prime.at n=9A157929
- Triangle T(n,k) = A008292(n+1,k+1) + A060187(n+1,k+1)- 1 read along rows 0<=k<=n.at n=37A176490
- Triangle T(n,k) = A008292(n+1,k+1) + A060187(n+1,k+1)- 1 read along rows 0<=k<=n.at n=43A176490
- Number of 3-element subsets of {1,...,n} whose sum has more than 2 divisors.at n=38A241563
- Number of non-abelian groups of order prime(n)^6.at n=12A271811
- Numbers such that the sum of their digits is equal to the sum of digits of their aliquot parts.at n=38A274218
- Number of nX3 0..1 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=4A281983
- Number of nX5 0..1 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=2A281985
- T(n,k)=Number of nXk 0..1 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=23A281988