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Properties of the Number 12878

Twelve Thousand Eight Hundred Seventy-Eight

Basics

Value: 12877 → 12878 → 12879

Parity: even

Prime: No

Previous Prime: 12853

Next Prime: 12889

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 47 × 137

Divisors: 1, 2, 47, 94, 137, 274, 6439, 12878

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11001001001110

Octal: 31116

Duodecimal: 7552

Hexadecimal: 324e

Square: 165842884

Square Root: 113.48127598859647

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

Number of undirected cycles of the Platonic graphs (in the order of tetrahedral, cubical, octahedral, dodecahedral, and icosahedral graph). A358999
a(n) = A000984(n) + n. A134758
a(0) = 2 and, for n >= 1, rewrite 0->100 in the binary expansion of n and append 10 to the right. A80310
Index at which n first appears in A307720. A307630
Numbers which are the sum of a prime and the square of the next prime. A349660
Composite numbers·such that σ(x+120) = σ(x)+120. A54985
Number of rooted identity trees with n nodes and exactly 6 subtrees from the root. A227810
Expansion of ( 1 + 4 * ∑k>=0 x2k/(1 - x2k) )1/2. A382333
Number of (n+1) X (n+1) 0..1 arrays with the number of rightwards and downwards edge increases in each 2 X 2 subblock equal to the number in all its horizontal and vertical neighbors. A206259
Number of (n+1) X 8 0..1 arrays with the number of rightwards and downwards edge increases in each 2 X 2 subblock equal to the number in all its horizontal and vertical neighbors. A206266