10258
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 16128
- Proper Divisor Sum (Aliquot Sum)
- 5870
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 4884
- Möbius Function
- -1
- Radical
- 10258
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 148
- 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
- yes
- Odd
- no
Appears in sequences
- a(n) = Sum_{k=0..n-3} T(n,k) * T(n,k+3), with T given by A026670.at n=5A026984
- Numbers with exactly five distinct base-10 digits.at n=16A031987
- Denominators of continued fraction convergents to sqrt(94).at n=11A041169
- Generalized Pellian with second term equal to 10.at n=9A048697
- a(n) = 6^n + 7^n + 9^n.at n=4A074578
- Denominators of convergents of the continued fraction with the n+1 partial quotients: [2;2,2,...(n 2's)...,2,n+1], starting with [1], [2;2], [2;2,3], [2;2,2,4], ...at n=9A088211
- Partial sums of primes that are not Chen primes (starting with 1).at n=33A118483
- Phi(n) values in A115921.at n=25A216381
- Number of compositions of n with exactly 2 transitions between different parts.at n=28A244714
- Products of three distinct primes p1, p2 and p3 (sphenic numbers) with p1<p2 and p3 is the concatenation of p1 with p2.at n=3A281592
- a(n) = 680*2^n - 622.at n=4A305263
- a(n) = (n - 1)*prime(n + 1).at n=46A306192
- Number of (not necessarily maximal) cliques in the n X n fiveleaper graph.at n=40A308604
- Rounded value of z(n)*prime(n), where z(n) = imaginary part of n-th nontrivial zero of the Zeta function and prime(n) = n-th prime.at n=27A342756
- Numbers that are the sum of eight fourth powers in six or more ways.at n=27A345581
- Numbers that are the sum of eight fourth powers in exactly six ways.at n=21A345838
- Number of Aut(G)-orbits on G-characters that come from Riemann surfaces of genus n.at n=29A347373
- Number of n-step self-avoiding walks on three quadrants of a 2D square lattice.at n=9A348057
- a(n) is the least positive integer that has exactly n anagrams that are semiprimes, or -1 if there is no such integer.at n=17A362499
- Number of simple graphs on n unlabeled vertices without isolated or universal vertices.at n=8A367143