Properties of the Number 12131

Twelve Thousand One Hundred Thirty-One

Basics

Value: 12130 → 12131 → 12132

Parity: odd

Prime: No

Previous Prime: 12119

Next Prime: 12143

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 7 × 1733

Divisors: 1, 7, 1733, 12131

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111101100011

Octal: 27543

Duodecimal: 702B

Hexadecimal: 2f63

Square: 147161161

Square Root: 110.14081895464551

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

Absolute discriminants of complex quadratic fields with 3-class group of elementary abelian type (3,3) of rank 2. A242863

Absolute discriminants of complex quadratic fields with 3-class rank 2. A242862

Partition the concatenation 1234567...of natural numbers into successive strings which are multiples of 7, all different and > 7 (0 is never taken as the most significant digit). A77300

House numbers: a(n) = (n+1)³ + ∑_i=1..n i². A51662

T(n,k)=Number of nXk 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors. A183483

Number T(n,k) of colored integer partitions of n using all colors of a k-set such that a color pattern for part i has i distinct colors in increasing order; triangle T(n,k), n>=0, 0<=k<=n, read by rows. A327117

a(n) = coefficient of xⁿ in A(x) such that: 0 = ∑_n=-oo..+oo x^3·n * (xⁿ - 2·A(x))^4·n+1. A358953

Absolute discriminants of complex quadratic fields with 3-class group of type (3,3) and Hilbert 3-class field tower of exact length 2. A242864

a(n) = ∑_{k=1..floor((n+1)/2)} T(n,2k-1), array T as in A049777. A49778

Put the natural numbers together without spaces and read them five at a time advancing one space each time. A193493