Properties of the Number 30725

Thirty Thousand Seven Hundred Twenty-Five

Basics

Value: 30724 → 30725 → 30726

Parity: odd

Prime: No

Previous Prime: 30713

Next Prime: 30727

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 ² × 1229

Divisors: 1, 5, 25, 1229, 6145, 30725

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100000000101

Octal: 74005

Duodecimal: 15945

Hexadecimal: 7805

Square: 944025625

Square Root: 175.28548142958104

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

Numbers n for which there are exactly seven k such that n = k + (product of nonzero digits of k). A96928

Let A(n) = #{(i,j): i² + j² <= n}, V(n) = π*n, P(n) = A(n) - V(n); A000099 gives values of n where |P(n)| sets a new record; sequence gives A(A000099(n)). A323

Numbers of the form (7^j + 9^k)/2, for j and k >= 0. A226795

Numbers whose base-5 representation contains exactly three 0's and three 4's. A45217

Numbers k such that A030717(k) = 3. A30725