Properties of the Number 12500

Twelve Thousand Five Hundred

Basics

Value: 12499 → 12500 → 12501

Parity: even

Prime: No

Previous Prime: 12497

Next Prime: 12503

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 ⁵

Divisors: 1, 2, 4, 5, 10, 20, 25, 50, 100, 125

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11000011010100

Octal: 30324

Duodecimal: 7298

Hexadecimal: 30d4

Square: 156250000

Square Root: 111.80339887498948

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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 of the form 2ⁱ*5^j with i, j >= 0. A3592

a(n) = 5·n². A33429

a(n) is the maximal number of a's that can be produced in a blank document with n "keystrokes". A193286

Hypotenuses for which there exist exactly 5 distinct Pythagorean triangles. A84649

Numbers whose prime factors are 2 and 5. A33846

Numbers k such that Sum_i ( e(i)/p(i) ) is an integer, where the prime factorization of k is Product_i ( p(i)^e(i) ). A72873

Dispersion of A008587 (5,10,15,20,25,30,...), by antidiagonals. A191702

a(n) = n² * φ(n). A53191

a(0) = 1; a(n) = 4·5^n-1 for n >= 1. A5054

Numbers k such that ∑_j p_j = ∑_j e_j where ∏_j p_j^e_j is the prime factorization of k. A54411