Properties of the Number 15375

Fifteen Thousand Three Hundred Seventy-Five

Basics

Value: 15374 → 15375 → 15376

Parity: odd

Prime: No

Previous Prime: 15373

Next Prime: 15377

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 ³ × 41

Divisors: 1, 3, 5, 15, 25, 41, 75, 123, 125, 205

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11110000001111

Octal: 36017

Duodecimal: 8A93

Hexadecimal: 3c0f

Square: 236390625

Square Root: 123.99596767637244

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

Numbers n that are the hypotenuse of exactly 10 distinct integer-sided right triangles, i.e., n² can be written as a sum of two squares in 10 ways. A97225

Base 10 numbers that are palindromic in bases 2 and 4. A97856

a(n) = 16n² + 32n + 15. A141759

O.g.f. A(x) satisfies: [xⁿ] exp( n·A(x) ) = n² * [x^n-1] exp( n·A(x) ) for n>=1. A300617

The Wiener index of the windmill graph D(6,n). The windmill graph D(m,n) is the graph obtained by taking n copies of the complete graph K_m with a vertex in common (i.e., a bouquet of n pieces of K_m graphs). A180577

Irregular table read by rows: T(n,k) is the number of k-gons, k>=2, among all distinct circles that can be constructed from the 3 vertices and the equally spaced 3·n points placed on the sides of an equilateral triangle, using only a compass. A372617

a(n) = dot_product(n,n-1,...2,1)*(5,6,...,n,1,2,3,4). A26060

Numbers k such that τ(k) - τ(k+1) = 1. A68208

Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k peaks of maximum height (1 <= k <= n). A152879

A symmetrical triangle sequence: T(n, k) = q^k + q^n-k - qⁿ, with q=5. A176226