5499
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 27
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 8736
- Proper Divisor Sum (Aliquot Sum)
- 3237
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 3312
- Möbius Function
- 0
- Radical
- 1833
- Omega Function (Ω)
- 4
- 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
- 67
- 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
- no
- Odd
- yes
Appears in sequences
- Coordination sequence T8 for Zeolite Code MFI.at n=47A008171
- Numbers that are the sum of 4 distinct positive cubes in 3 or more ways.at n=32A025413
- Numbers whose set of base-12 digits is {2,3}.at n=23A032812
- Numerators of continued fraction convergents to sqrt(557).at n=5A042066
- Numbers whose base-5 representation contains exactly two 3's and three 4's.at n=10A045303
- a(n) = (1/6)*(2*n - 3)*(n + 2)*(n + 1).at n=27A058373
- Numbers n such that n and its reversal are both multiples of 13.at n=27A062903
- Non-palindromic number and its reversal are both multiples of 13.at n=15A062912
- Numbers k such that k^2 = x^3 + y^4 with positive integers x, y.at n=20A087209
- Triangle read by rows: T(n, k) = 10^(n-1) - 1 + k*floor(9*10^(n-1)/n), for 1 <= k <= n.at n=7A093846
- Number of partitions of 2*n into minimal numbers.at n=33A099385
- 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=25A102538
- Arithmetic mean of all n-digit positive even numbers.at n=3A110430
- a(n) = the first row sum of M^(n-1), where M = matrix(4,4, [1,1,1,1;0,1,2,3;0,1,3,6;0,1,4,10]).at n=4A123224
- Numbers ending in 1, 3, 7 or 9 such that either prepending or following them by one digit doesn't produce a prime.at n=30A124666
- Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+241)^2 = y^2.at n=7A129991
- Integers k such that 10^k + 51 is a prime number.at n=12A135118
- Sum of all primes from n-th prime to (2*n-1)-th prime.at n=28A161463
- a(n) = (-1)^n*n*(n+1)*(2*n-5)/6.at n=25A167386
- Number of -1..1 arrays of n elements with first, second and third differences also in -1..1.at n=19A202117