Properties of the Number 2499

Two Thousand Four Hundred Ninety-Nine

Basics

Value: 2498 → 2499 → 2500

Parity: odd

Prime: No

Previous Prime: 2477

Next Prime: 2503

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 ² × 17

Divisors: 1, 3, 7, 17, 21, 49, 51, 119, 147, 357

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 100111000011

Octal: 4703

Duodecimal: 1543

Hexadecimal: 9c3

Square: 6245001

Square Root: 49.98999899979995

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) = n*(n+2) = (n+1)² - 1. A5563

a(n) = 4·n² - 1. A466

a(n) = n² - 2·n. A67998

a(n) is the smallest number k such that the symmetric representation of σ(k) has n parts. A239663

Square array read by antidiagonals in which T(n,k) is the n-th number j with the property that the symmetric representation of σ(j) has k parts, with j >= 1, n >= 1, k >= 1. A240062

a(0) = 0, a(1) = 1 and a(n) = n² - 1 with n >= 2. A132411

3 times octagonal numbers: a(n) = 3·n*(3·n-2). A152751

Numbers k such that 2^k - 7 is prime. A59609

a(n) = (prime(n)+1)*(prime(n+1)+1)/4. A79079

a(n) = (4·n+1)*(4·n+3). A1539