11024
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 8
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 20
- Divisor Sum
- 23436
- Proper Divisor Sum (Aliquot Sum)
- 12412
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 4992
- Möbius Function
- 0
- Radical
- 1378
- Omega Function (Ω)
- 6
- 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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 130
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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
- Floor(X/Y), where X = concatenation of the triangular numbers and Y = concatenation of natural numbers.at n=6A036843
- Base 6 digits are, in order, the first n terms of the periodic sequence with initial period 1,2,3,0.at n=5A037697
- Values of n^2 - 1 resulting from A050795.at n=10A050799
- Partial sums of the partition function (A000041), with the last term subtracted. Also the sum of the row of the character table for S_n corresponding to the partition n-1,1 for n>1. Also the sum over all partitions lambda of n of one less than the number of 1's in lambda.at n=28A058884
- a(n) = product of all even numbers between n-th prime and (n+1)-st prime.at n=26A061216
- Engel expansion of sinh(1/2).at n=26A068379
- Multiples of 8 with digit sum 8.at n=30A069543
- Numbers k such that both k and k+1 are abundant.at n=3A096399
- Numbers k such that both sigma(k) >= 2*k-1 and sigma(k+1) >= 2*(k+1)-1.at n=5A103289
- Even elements of A085493.at n=24A106431
- Numbers beginning with a vowel in French.at n=26A118557
- Numbers k such that k^2 is a sum of consecutive cubes larger than 1.at n=43A126200
- a(n) = 9*n^2-1.at n=34A136016
- a(n) = 4*(3*n+1)*(3*n+2).at n=17A144410
- Difference between the cubes and 2*tetrahedral numbers; A000578(n) - 2*A000292(n).at n=26A146298
- Diagonal sums of number triangle A113582.at n=24A154324
- a(n) = 441*n - 1.at n=24A158319
- Even cyclops numbers.at n=42A162198
- Numbers n such that n^2 can be represented as sum of (at least two) consecutive cubes and n is not a triangular number.at n=20A163393
- a(n) = (n-1)*(n+2)*(n^2 + n + 2)/4.at n=13A168566