Properties of the Number 31109

Thirty-One Thousand One Hundred Nine

Basics

Value: 31108 → 31109 → 31110

Parity: odd

Prime: No

Previous Prime: 31091

Next Prime: 31121

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 13 × 2393

Divisors: 1, 13, 2393, 31109

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100110000101

Octal: 74605

Duodecimal: 16005

Hexadecimal: 7985

Square: 967769881

Square Root: 176.3774361986249

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

Concatenate all the prime divisors in previous term (with repetition), starting at 49. A56938

Trajectory of 407 under the map x -> A084317(x). A343157

(1/8)*number of lattice points with odd indices in a cubic lattice inside a sphere around the origin with radius 2·n. A120884

Number of nondecreasing arrangements of n+3 numbers in 0..4 with each number being the sum mod 5 of three others. A183899

a(n) = n*(n³+n²+2·n+1). A186636

Expansion of cosh(x)*cosh(log(1+x)). A9178

Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1100-1111-0011 pattern in any orientation. A147466

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (0, 1, 1), (1, -1, 1), (1, 0, -1)}. A148991

a(n) is the first number k such that kⁱ is a quasi-Niven number (A209871) for 1<=i<=n but not for i=n+1. A356978

Position of n-th 8 in A031100. A31109