1437
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 1920
- Proper Divisor Sum (Aliquot Sum)
- 483
- 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
- 956
- Möbius Function
- 1
- Radical
- 1437
- 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
- 52
- 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
- Nearest integer to 4 * Pi * n^3 / 3.at n=7A002101
- Smallest number of complexity n: smallest number requiring n 1's to build using +, * and ^.at n=19A003037
- Numbers k such that 4*3^k - 1 is prime.at n=11A005540
- Positions of remoteness 6 in Beans-Don't-Talk.at n=30A005694
- Bond percolation series for directed cubic lattice.at n=8A006804
- Coordination sequence T1 for Zeolite Code AWW.at n=27A008045
- Coordination sequence T2 for Zeolite Code MFI.at n=24A008165
- Numbers k such that the continued fraction for sqrt(k) has period 28.at n=20A020367
- Numbers k such that Fibonacci(k) == 2 (mod k).at n=26A023174
- a(n+1) = a(n) converted to base 7 from base 6 (written in base 10).at n=25A023384
- a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Lucas numbers), t = (odd natural numbers).at n=13A025093
- Index of 9^n within the sequence of the numbers of the form 5^i*9^j.at n=45A025735
- a(n) = sum of the numbers between the two n's in A026366.at n=19A026369
- a(n) = n^2 - 7.at n=35A028881
- 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 24.at n=14A031522
- "BGJ" (reversible, element, labeled) transform of 1,1,1,1...at n=8A032049
- "CFK" (necklace, size, unlabeled) transform of 1,3,5,7...at n=10A032142
- Index of first occurrence of n as a term in A001203, the continued fraction for Pi.at n=50A032523
- Fractional part of square root of a(n) starts with 9: first term of runs.at n=32A034115
- Dirichlet convolution of d(n) (# of divisors) with Catalan numbers.at n=8A034774