10439
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 12432
- Proper Divisor Sum (Aliquot Sum)
- 1993
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 8640
- Möbius Function
- -1
- Radical
- 10439
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 3
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
- 86
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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 paraffins.at n=34A005998
- a(n) = (2*n+1) * (4*n-1).at n=36A033566
- Gaps of 7 in sequence A038593 (upper terms).at n=28A038654
- Gaps of 10 in sequence A038593 (lower terms).at n=8A038659
- Numbers ending with '9' that are the difference of two positive cubes.at n=33A038864
- Distinct odd numbers in the numerators of the 1/5-Pascal triangle (by row).at n=37A046624
- Distinct odd numbers in writing first numerator and then denominator of each element to the right of the central elements of the 1/5-Pascal triangle (by row).at n=34A046628
- Coefficient of q^3 in nu(n), where nu(0)=1, nu(1)=b and, for n>=2, nu(n)=b*nu(n-1)+lambda*(1+q+q^2+...+q^(n-2))*nu(n-2) with (b,lambda)=(2,1).at n=10A074086
- Numbers m not of the form k*(k+2) that have a single '1' in the periodic part of the continued fraction of sqrt(n).at n=34A102538
- 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, -1, 0), (-1, -1, 1), (-1, 0, 0), (1, -1, -1), (1, 1, 0)}.at n=9A149085
- a(n) = 1331*n - 209.at n=7A157444
- Numbers k that divide 10^(k+1)-1.at n=34A175203
- Third accumulation array, T, of the natural number array A000027, by antidiagonals.at n=67A185508
- Numbers k such that 2^(k+1) == 1 (mod k).at n=17A187787
- Composite numbers n such that b^(n+1) == 1 (mod n) for every b coprime to n.at n=9A208728
- Odd composite numbers k that divide the imaginary part of (1+2i)^A201629(k).at n=32A213337
- Sum of numbers on n-th segment of Ulam's spiral.at n=42A257171
- Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 389", based on the 5-celled von Neumann neighborhood.at n=30A281676
- Generalized Lucas-Carmichael numbers for D=9697.at n=32A290560
- Distance of n-th iteration in an alternating rectangular spiral.at n=34A322108