Properties of the Number 3925

Three Thousand Nine Hundred Twenty-Five

Basics

Value: 3924 → 3925 → 3926

Parity: odd

Prime: No

Previous Prime: 3923

Next Prime: 3929

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 ² × 157

Divisors: 1, 5, 25, 157, 785, 3925

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 111101010101

Octal: 7525

Duodecimal: 2331

Hexadecimal: f55

Square: 15405625

Square Root: 62.64982043070834

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

Centered cube numbers: n³ + (n+1)³. A5898

Number of subsets of {1..n} such that some element can be written as a nonnegative linear combination of the others. A364914

Fourth spoke of a hexagonal spiral. A56108

Generalized 15-gonal (or pentadecagonal) numbers: n*(13·n - 11)/2, n = 0,+1,-1,+2,-2,+3,-3, ... A277082

An array A of the positive odd numbers, read by antidiagonals upwards, giving the present triangle T. A347834

Composite and every divisor (except 1) contains the digit 5. A62672

15-gonal (or pentadecagonal) numbers: n*(13n-11)/2. A51867

a(n) = Fibonacci(2·n+1) - 2^n-1. A61667

a(n) = a(n-1) + a(m) for n >= 4, where m = 2·n - 3 - 2^p+1 and p is the smallest integer such that 2^p < n - 1 <= 2^p+1, starting with a(1) = a(2) = a(3) = 1. A50024

When expressed in base 4 and then interpreted in base 6, is a multiple of the original number. A62921