Properties of the Number 15391

Fifteen Thousand Three Hundred Ninety-One

Basics

Value: 15390 → 15391 → 15392

Parity: odd

Prime: Yes

Previous Prime: 15383

Next Prime: 15401

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 15391

Divisors: 1, 15391

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11110000011111

Octal: 36037

Duodecimal: 8AA7

Hexadecimal: 3c1f

Square: 236882881

Square Root: 124.06046912695437

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

First member of a prime 5-tuple in a 2p-1 progression. A57328

First member of a prime quadruple in a 2p-1 progression. A57327

Primes p such that p-1 and p+1 are both divisible by fourth powers. A86709

Prime p1 of consecutive primes p1, p2, where p2-p1=10, and p1, p2 are in different centuries. A160500

Primes starting a Cunningham chain of the second kind of length 5. A110022

Smallest primes starting a complete four iterations Cunningham chain of the first or second kind. A110027

Primes of the form n² + 15. A243450

Primes p for which the greatest common divisor of 2^p+1 and 3^p+1 is greater than 1. A260674

Primes p such that (p²⁵⁶ + 1)/2 is prime. A341234

2·a(n) is the start of 3 consecutive numbers (even-odd-even) that are sums of divisors, i.e., terms of A000203. A342555