Properties of the Number -87025

Eighty-Seven Thousand Twenty-Five

Basics

Value: -87026 → -87025 → -87024

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 ² × 59 ²

Divisors: 1, 5, 25, 59, 295, 1475, 3481, 17405, 87025

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -10101001111110001

Octal: -251761

Duodecimal: -42441

Hexadecimal: -153f1

Square: 7573350625

Square Root: 295

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

a(n) = (11·n + 9)². A17498

Squares which are the arithmetic mean of two consecutive primes. A69495

Cyclops squares: squares (A000290) that are also cyclops numbers (A134808). A160711

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 0 1 1 vertically. A207908

Squares with initial digit '8'. A45792

a(n) = (14·n+1)². A134934

a(n) = (10·n + 5)². A17330

a(n) = (p1 + p2)/36 such that p1 >= 5 and p2 = p1 + 2 are twin primes and p1 + p2 is a k-th power with k > 1. A330978

Numbers > 1 that are not a prime power and whose prime indices and exponents are all themselves prime numbers. A352518

Numbers n for which the absolute value of the abundance of both n and n² is a prime number. A125237