10493
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
- 4
- Divisor Sum
- 12000
- Proper Divisor Sum (Aliquot Sum)
- 1507
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 8988
- Möbius Function
- 1
- Radical
- 10493
- 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
- 104
- 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
- Self-convolution of Lucas numbers.at n=12A004799
- Numbers k in which the digits of k^2 appear.at n=15A029774
- Numbers k such that k and k^2 have the same set of digits.at n=9A029793
- [ exp(11/15)*n! ].at n=6A030910
- Number of n-node rooted identity trees of height at most 6.at n=17A038085
- a(n) = Sum{a(k): k=0,1,2,...,n-4,n-2,n-1}; a(n-3) is not a summand; initial terms are 1,2,4.at n=15A049870
- Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 18.at n=47A050967
- Bisection of Lucas triangle A060922: even-indexed members of column sequences of A060922 (not counting leading zeros).at n=29A060923
- Second column of Lucas bisection triangle (even part).at n=6A060934
- Numbers k that divide floor((3/2)^k) = A002379(k).at n=13A073633
- Interprimes which are of the form s*prime, s=7.at n=13A075282
- Expansion of (1-x)^(-1)/(1+x-2*x^3).at n=34A077904
- Starting positions of strings of three 5's in the decimal expansion of Pi.at n=9A083620
- Members of 3-cycles of permutation A111273.at n=9A113701
- Numbers k such that k and k^2 use only the digits 0, 1, 3, 4 and 9.at n=13A136841
- Semiprimes which have one or more occurrences of exactly five different digits.at n=26A235693
- Five-digit odd semiprimes with all digits distinct.at n=19A247948
- Numbers n such that both n and n squared contain exactly the same digits, and n is not divisible by 10.at n=4A258231
- Number of nonnegative solutions of a certain system of linear Diophantine equations depending on an odd parameter.at n=5A277388
- Sum of the prime parts in the partitions of n into 4 parts.at n=46A309465