Properties of the Number 31874

Thirty-One Thousand Eight Hundred Seventy-Four

Basics

Value: 31873 → 31874 → 31875

Parity: even

Prime: No

Previous Prime: 31873

Next Prime: 31883

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 15937

Divisors: 1, 2, 15937, 31874

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111110010000010

Octal: 76202

Duodecimal: 16542

Hexadecimal: 7c82

Square: 1015951876

Square Root: 178.53291013143766

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) = number of ways the set {1,2,...,n} can be split into proper subsets with equal sums. A112956

a(n) = ∑_k=1..n (-1)^k-1 * binomial(k+3,4) * floor(n/k). A366939

Composite numbers n such that σ(n) - reversal(n) = 1. A230020

Sequence of distinct least nonnegative numbers such that the average of the first n terms is a cube. A245621

Array read by antidiagonals: T(n,k) is the number of color patterns (set partitions) in an unoriented cycle of length n using k or fewer colors (subsets). A320748

Number of (n+1)X5 0..2 arrays with every 2X2 subblock having one or two distinct values, and new values 0..2 introduced in row major order. A209825

Lexically first 11-mark Golomb ruler. A31874