Properties of the Number 15855

Fifteen Thousand Eight Hundred Fifty-Five

Basics

Value: 15854 → 15855 → 15856

Parity: odd

Prime: No

Previous Prime: 15823

Next Prime: 15859

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 7 × 151

Divisors: 1, 3, 5, 7, 15, 21, 35, 105, 151, 453

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11110111101111

Octal: 36757

Duodecimal: 9213

Hexadecimal: 3def

Square: 251381025

Square Root: 125.91663909110662

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

Triangle T(n,k) is the number of permutations on n elements with at least one k-cycle for 1 <= k <= n. A293211

A partition product of Stirling₁ type [parameter k = 5] with biggest-part statistic (triangle read by rows). A157395

Numbers k such that 4·k-1, 8·k-1, 16·k-1 and 32·k-1 are all primes. A101794

Numbers k such that 4·k-1, 8·k-1, 16·k-1, 32·k-1 and 64·k-1 are all primes. A101994

A partition product of Stirling₂ type [parameter k = -5] with biggest-part statistic (triangle read by rows). A157397

A partition product of Stirling₂ type [parameter k = 5] with biggest-part statistic (triangle read by rows). A157405

A partition product of Stirling₁ type [parameter k = -5] with biggest-part statistic (triangle read by rows). A157385

a(n) = ∑_i=0..n ∑_j=0..i T(i,j), T given by A026536. A26550

Number of permutations of n elements containing a 2-cycle. A27616

Numbers with exactly 4 distinct palindromic prime factors. A46402