Properties of the Number 15875

Fifteen Thousand Eight Hundred Seventy-Five

Basics

Value: 15874 → 15875 → 15876

Parity: odd

Prime: No

Previous Prime: 15859

Next Prime: 15877

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 ³ × 127

Divisors: 1, 5, 25, 125, 127, 635, 3175, 15875

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11111000000011

Octal: 37003

Duodecimal: 922B

Hexadecimal: 3e03

Square: 252015625

Square Root: 125.99603168354153

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

a(n) = (4·n+1)*(4·n+3). A1539

a(n) = 36n² - 1. A136017

a(n) is the number of integers k in range [2ⁿ, (2ⁿ⁺¹)-1] such that all terms in finite sequence [k, floor(k/2), floor(k/4), floor(k/8), ..., 1] are squarefree. A293230

Irregular array read by rows in which row n lists the smallest elements, in ascending order, of conjecturally all primitive cycles of positive integers under iteration by the Collatz-like 3x-k function, where k = A226630(n). A226623

Number of locally disjoint rooted semi-identity trees with n unlabeled vertices. A331783

a(n) = 9·n²-1. A136016

Numbers n such that n² - 1 is expressible as the sum of two nonzero squares in exactly one way. A50797

Number of partitions of n such that m(greatest part) = m(1), where m = multiplicity. A240078

After a(0)=0, numbers n such that (A002828(1+n) = 1) and (A002828(4+n) = 4). A278491

a(n) = 441·n - 1. A158319