Properties of the Number 12499

Twelve Thousand Four Hundred Ninety-Nine

Basics

Value: 12498 → 12499 → 12500

Parity: odd

Prime: No

Previous Prime: 12497

Next Prime: 12503

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 29 × 431

Divisors: 1, 29, 431, 12499

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 11000011010011

Octal: 30323

Duodecimal: 7297

Hexadecimal: 30d3

Square: 156225001

Square Root: 111.79892664958818

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

Values of n such that L(10) and N(10) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227448

Numbers of the form i·5^j-1 (i=1..4, j >= 0). A181287

a(n) = 20·n² - 1. A158491

Numbers k such that ∑_i=1..k i⁶ divides ∏_i=1..k i⁶. A166606

Numbers which contain only the digit 4 in their base-5 representation, with at most one exception. If the exception is the most-significant digit, it must be the digit 1, 2, or 3, otherwise the exception must be the digit 3. A188531

Bases in which 5 is a unique-period prime. A306074

Lucky numbers with size of gaps equal to 20 (lower terms). A31902

An approximation to sigma_5/2(n): floor( ∑_d∣n d^5/2 ). A58272

Number of Dyck paths of semilength n such that all positive levels up to the highest level have a positive number of peaks and all the level peak numbers are distinct. A287993

Numbers k that have the same set of digits in base 10 as primepi(k). A355418