10238
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
- 15360
- Proper Divisor Sum (Aliquot Sum)
- 5122
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 5118
- Möbius Function
- 1
- Radical
- 10238
- 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
- 117
- 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
- Erroneous version of A309982.at n=15A006775
- Expansion of log(1+log(1+sin(x))).at n=7A009308
- Powers of fifth root of 13 rounded to nearest integer.at n=18A018151
- Powers of fifth root of 13 rounded up.at n=18A018152
- a(1) = 2; a(n+1) = a(n)-th nonprime, where nonprimes begin at 1.at n=34A025003
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 100.at n=21A031598
- Numbers with exactly five distinct base-10 digits.at n=4A031987
- a(n) is the least integer that has exactly n anagrams that are primes.at n=13A046890
- a(n) is the least number with exactly n permutations of digits that are primes.at n=19A046893
- a(n) = 5*2^n - 2.at n=11A051633
- Numbers k such that k^128 + 1 is prime.at n=26A056994
- Number of Bottleneck-Monge matrices with 3 rows. In the formula below, P=3.at n=6A070051
- Number of Bottleneck-Monge matrices with 7 rows.at n=2A070055
- Number of configurations of the 5 X 5 variant of sliding block 15-puzzle ("24-puzzle") that require a minimum of n moves to be reached, starting with the empty square in one of the corners.at n=11A090031
- Start with 1, then alternately add 2 or double.at n=23A123208
- a(n) = 5*2^(n-2) - 2 for n > 1, with a(1) = 1.at n=12A131051
- Row sums of triangle A134061.at n=11A134062
- Main diagonal of array T(k,n) = n-th number in which the number of distinct base 10 digits is k.at n=4A220111
- Semiprimes which have one or more occurrences of exactly five different digits.at n=1A235693
- The 180-degree spoke (or ray) of a hexagonal spiral of Ulam.at n=29A244806