Properties of the Number 61959

Sixty-One Thousand Nine Hundred Fifty-Nine

Basics

Value: 61958 → 61959 → 61960

Parity: odd

Prime: No

Previous Prime: 61949

Next Prime: 61961

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 19 × 1087

Divisors: 1, 3, 19, 57, 1087, 3261, 20653, 61959

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111001000000111

Octal: 171007

Duodecimal: 2BA33

Hexadecimal: f207

Square: 3838917681

Square Root: 248.9156483630549

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

a(n) = (1/n!)*A001689(n). A94794

a(n) = (n+6)*a(n-1) + (n-1)*a(n-2), a(-1)=0, a(0)=1. A176733

Expansion of e.g.f. f(x) * exp(2·f(x)), where f(x) = (exp(3·x) - 1)/3. A383261

Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 6 (most significant digit on right). A61959

Square array read by antidiagonals: A(k, n) = (-1)ⁿ⁺¹* hypergeom([k, -n+1], [], 1) for n>0 and A(k,0) = 0 (n>=0, k>=1). A247490