7379
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 26
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 7584
- Proper Divisor Sum (Aliquot Sum)
- 205
- 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
- 7176
- Möbius Function
- 1
- Radical
- 7379
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 101
- 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
- Number of partitions into non-integral powers.at n=8A000397
- Juxtapose pairs of primes.at n=10A007795
- (d(n)-r(n))/5, where d = A006527 and r is the periodic sequence with fundamental period (4,1,4,0,1).at n=46A026036
- Denominators of continued fraction convergents to sqrt(874).at n=8A042689
- Concatenate the n-th and (n+1)st prime.at n=20A045533
- McKay-Thompson series of class 42d for Monster.at n=46A058678
- Composite and every divisor (except 1) contains the digit 7.at n=38A062676
- Numbers n such that sigma (phi ( n ) ) = sigma (sigma (n ) ) where phi is Euler's totient and sigma is the multiplicative sum-of-divisors function.at n=7A065556
- a(n) = (prime(n)+1)*n - 1.at n=40A083723
- Euler-Seidel matrix T(k,n) with start sequence A000248, read by antidiagonals.at n=34A098697
- Lesser of a,b where n^2 = a^3 + b^3; a,b > 0 and gcd(a,b)=1. The greater of a,b is the corresponding term in A099533 and n, which is used to order this sequence, is the corresponding term in A099426.at n=30A099532
- Concatenations of pairs of primes that differ by 6.at n=13A103206
- Positive integers i for which A112049(i) == 7.at n=15A112067
- Subtriangle of generalized Catalan triangle CM(1,2) = A116880.at n=18A116872
- Generalized Catalan triangle, called CM(1,2).at n=24A116880
- List of primes with digits grouped into clumps of four. Leading zeros are not printed.at n=9A136420
- Number of ways to partition an n X 3 grid into 3 connected equal-area regions.at n=11A167243
- Semiprimes which are the sum of three distinct positive cubes in two or more distinct ways.at n=7A180089
- y-values in the solution to 7*x^2-6 = y^2.at n=6A195878
- Number of (n+1)X(n+1) -11..11 symmetric matrices with every 2X2 subblock having sum zero and one or three distinct values.at n=5A211712