10562
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 15846
- Proper Divisor Sum (Aliquot Sum)
- 5284
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 5280
- Möbius Function
- 1
- Radical
- 10562
- 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
- 55
- 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
- yes
- Odd
- no
Appears in sequences
- Related to population of numbers of form x^2 + y^2.at n=15A000694
- Hoggatt sequence with parameter d=7.at n=5A005365
- Numbers whose concatenation of prime factors (with multiplicity) is a square.at n=29A038693
- Denominators of continued fraction convergents to sqrt(569).at n=9A042091
- Base 4 expansion of 1/n has equal percentage of each digit 0,1,2,3.at n=14A074709
- Base 4 expansion of 1/n has equal percentage of each digit 0,1,2,3 (primitive values of n only).at n=12A074900
- Semiprimes in A056109.at n=26A113528
- Triangle read by rows: counts permutations by number of big descents.at n=29A120434
- Number of 0..21 integer arrays v[1..n] of length n with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1.at n=2A171327
- Number of 0..n-1 integer arrays v[1..3] of length 3 with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..2.at n=21A171354
- Triangle T(n,k), read by rows, given by (0,1,0,2,0,3,0,4,0,5,0,6,0,7,0,8,0,9,...) DELTA (2,0,3,0,4,0,5,0,6,0,7,0,8,0,9,...), where DELTA is the operator defined in A084938.at n=43A199335
- Last occurrence of n partitions in A205617.at n=22A205618
- Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2w^3>x^3+y^3.at n=28A211811
- Number of 0..n arrays of length 3 with 0 never adjacent to n.at n=20A212836
- Number of nX5 0..1 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.at n=5A224155
- T(n,k)=Number of nXk 0..1 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.at n=50A224158
- Number of 6Xn 0..1 arrays with diagonals and rows unimodal and antidiagonals nondecreasing.at n=4A224162
- Semiprimes which have one or more occurrences of exactly five different digits.at n=34A235693
- Nonprimes such that it takes exactly 3 iterations of reverse-and-add digits to generate a prime.at n=12A245208
- Expansion of f(-x^3) * f(-x^6) / (f(x) * f(-x^4)) in powers of x where f() is a Ramanujan theta function.at n=30A261252