Properties of the Number -270725

Two Hundred Seventy Thousand Seven Hundred Twenty-Five

Basics

Value: -270726 → -270725 → -270724

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 ² × 7 ² × 13 × 17

Divisors: 1, 5, 7, 13, 17, 25, 35, 49, 65, 85

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1000010000110000101

Octal: -1020605

Duodecimal: -110805

Hexadecimal: -42185

Square: 73292025625

Square Root: 520.3124061561477

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

Binomial coefficient C(n,48). A11001

Binomial coefficients C(2·n+4,4). A53134

Triangle, read by rows, where T(n,k) = C(C(n+2,3) - C(k+2,3), n-k) for n >= k >= 0. A126445

Doubly pentagonal numbers: a(n) = n*(3·n-2)*(3·n-1)*(3·n+1)/8. A232713

List of numbers that are both pentagonal (A000326) and binomial coefficients C(n,4) (A000332). A145920

Binomial coefficients C(52,n). A17768

Column 2 of triangle A126445; a(n) = C( C(n+4,3) - 4, n). A126448

Pentagonal numbers (A000326) in which parity of digits alternates. A297644

a(n) = binomial(4·n,4). A60541

Pentagonal numbers (A000326) that are the product of 2 palindromes greater than 1. A115745