Properties of the Number 2831

Two Thousand Eight Hundred Thirty-One

Basics

Value: 2830 → 2831 → 2832

Parity: odd

Prime: No

Previous Prime: 2819

Next Prime: 2833

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 19 × 149

Divisors: 1, 19, 149, 2831

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101100001111

Octal: 5417

Duodecimal: 177B

Hexadecimal: b0f

Square: 8014561

Square Root: 53.207142377692115

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

Numbers that are the sum of 10 positive 7th powers. A3377

Generalized 17-gonal (or heptadecagonal) numbers: m*(15·m - 13)/2 with m = 0, +1, -1, +2, -2, +3, -3, ... A303305

Numbers k in pairs (j,k), with j <> k +- 1, such that the sum of their cubes is equal to a centered cube number. A352136

Numbers k such that 2^k - 21 is prime. A96820

a(n) = n*(8·n - 3). A139273

a(n) = a(n-1) - a(n-3) with a(1)=0, a(2)=0, a(3)=1. A50935

Postludic numbers: Second column of Ludic array A255127. A254100

Maximum sum of products of successive pairs in a permutation of order n+1. A101986

Number of 12-regular partitions of n (no part is a multiple of 12). A328546

Numbers k such that 2·k! - 1 is prime. A76133