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Properties of the Number 12880

Twelve Thousand Eight Hundred Eighty

Basics

Value: 12879 → 12880 → 12881

Parity: even

Prime: No

Previous Prime: 12853

Next Prime: 12889

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 4 × 5 × 7 × 23

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11001001010000

Octal: 31120

Duodecimal: 7554

Hexadecimal: 3250

Square: 165894400

Square Root: 113.49008767288886

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 integer partitions of n without all distinct multiplicities. A336866
a(n) = 2·n*(4·n + 1). A33585
a(n) = B(n,n), where B(n,x) = ∑k=0..n Stirling2(n,k)*xk are the Bell polynomials (also known as exponential polynomials or Touchard polynomials). A242817
Number of ways of placing n labeled balls into n unlabeled (but 5-colored) boxes. A144180
Square array A(n,k), n >= 0, k >= 0, read by antidiagonals upwards, where the e.g.f. of column k is exp(k*(ex-1)). A189233
Numbers of the form p4*q·r*s where p, q, r, and s are distinct primes. A179693
Square array A(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of e.g.f. exp(k*(exp(x) - 1)). A292860
Number of regions formed after n points have been placed in general position on each edge of a triangle (as in A365929). A367015
Number of 3 X 3 magic squares (with distinct positive entries) having all entries < n. A108576
Number of genus 2, degree n, simply ramified covers of an elliptic curve. A170991