Properties of the Number 18749

Eighteen Thousand Seven Hundred Forty-Nine

Basics

Value: 18748 → 18749 → 18750

Parity: odd

Prime: Yes

Previous Prime: 18743

Next Prime: 18757

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 18749

Divisors: 1, 18749

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 100100100111101

Octal: 44475

Duodecimal: AA25

Hexadecimal: 493d

Square: 351525001

Square Root: 136.92698784388708

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

Least prime in A031926 (lesser of 8-twins) whose distance to the next 8-twin is 6·n. A52353

Number of partitions of n, with three kinds of 1,2,3 and 4 and two kinds of 5,6,7,... A711

Prime number spiral (clockwise, South spoke). A54566

Primes of the form (m²+1)/10. A207337

a(n) = 30·n² - 1. A158560

Numerator of A166100(A166101(n))/A166102(n). A166272

a(n) = minimal positive k such that the concatenation of decimal digits n and n+1 is a divisor of the concatenation of n+2, n+2+1, ..., n+2+k. A332830

Largest prime number p such that xⁿ + yⁿ mod p does not take all values on Z/pZ. A355920

Primes of the form m = 5ⁱ + 5^j - 1, where i > j >= 0. A239715

Numbers that divide exactly two Euclid numbers. A297891