Properties of the Number 12879

Twelve Thousand Eight Hundred Seventy-Nine

Basics

Value: 12878 → 12879 → 12880

Parity: odd

Prime: No

Previous Prime: 12853

Next Prime: 12889

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ⁵ × 53

Divisors: 1, 3, 9, 27, 53, 81, 159, 243, 477, 1431

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11001001001111

Octal: 31117

Duodecimal: 7553

Hexadecimal: 324f

Square: 165868641

Square Root: 113.48568191626643

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 partitions of n in which the least part is odd. A26804

T(n,k)=1/36 the number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock containing two of one value, two of another, and five of the last. A184457

a(n) = (2·n+1) * (4·n-1). A33566

Lesser of two consecutive numbers each divisible by a fourth power. A68782

Rectangular array read by antidiagonals: a(m,n) = 2·Integral_t>=0 T_n((t-m)/2)*exp(-t)*dt, m>=0, n>=0, where T_n(x) is n-th Chebyshev polynomial of first kind. A300481

a(n) = 2·Integral_t>=0 T_n((t-1)/2) * exp(-t) * dt, n>=0, where T_n(x) is n-th Chebyshev polynomial of first kind. A300485

Numbers of the form 110 + p². (where p is a prime). A138693

Nine times hexagonal numbers: a(n) = 9·n*(2·n-1). A152994

Number of (w,x,y) with all terms in {0,...,n} and w>floor((x+y)/3). A212974

Triangle with T(n,k) = k·E(n,k) where E(n,k) are Eulerian numbers A008292. A65826