Properties of the Number -765625

Seven Hundred Sixty-Five Thousand Six Hundred Twenty-Five

Basics

Value: -765626 → -765625 → -765624

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 5 ⁶ × 7 ²

Divisors: 1, 5, 7, 25, 35, 49, 125, 175, 245, 625

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -10111010111010111001

Octal: -2727271

Duodecimal: -30B0A1

Hexadecimal: -baeb9

Square: 586181640625

Square Root: 875

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 of the form 5ⁱ*7^j with i, j >= 0. A3595

Numbers whose prime factors are 5 and 7. A33851

Squares using only squarefree digits (2, 3, 5, 6, 7). A77676

Squares that remain squares when prefixed with a 9. A167044

Numbers m such that (m'+1)' = m-1, where m' is the arithmetic derivative of m. A203618

Numbers k such that the decimal representation of k ends that of the sum of the first k cubes. A301912

a(n) = A276086(n) * A276086(σ(n)-n), where A276086 is the primorial base exp-function, and σ is the sum of divisors function. A388282

Squares whose digit reversal is a brilliant number (A078972). A115667

Non-Niven (or non-Harshad) numbers that are divisible by the square of the sum of the squares of their digits. A379981

9-automorphic numbers ending in 5: final digits of 9·n² agree with n. A30995