Properties of the Number 4725

Four Thousand Seven Hundred Twenty-Five

Basics

Value: 4724 → 4725 → 4726

Parity: odd

Prime: No

Previous Prime: 4723

Next Prime: 4729

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 5 ² × 7

Divisors: 1, 3, 5, 7, 9, 15, 21, 25, 27, 35

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1001001110101

Octal: 11165

Duodecimal: 2899

Hexadecimal: 1275

Square: 22325625

Square Root: 68.7386354243376

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 k that divide the (right) concatenation of all numbers <= k written in base 25 (most significant digit on left). A29470

Odd abundant numbers (odd numbers m whose sum of divisors exceeds 2m). A5231

Triangular array: the fusion of (x+1)ⁿ and (x+2)ⁿ; see Comments for the definition of fusion. A193722

Triangle of Bessel numbers read by rows: T(n,k) is the number of k-matchings of the complete graph K(n). A100861

Triangle of coefficients of Bessel polynomials (exponents in decreasing order). A1497

Triangle a(n,k) (n >= 0, 0 <= k <= n) of coefficients of Bessel polynomials y_n(x) (exponents in increasing order). A1498

Triangle of Bessel numbers read by rows. Row n gives T(n,n), T(n,n-1), T(n,n-2), ..., T(n,1) for n >= 1. A111924

Bisection of A001400. A14125

Triangle read by rows: coefficients of modified Hermite polynomials. A99174

Exponential Riordan array (1, x(1+x/2)). A122848