Properties of the Number -3125

One Hundred Twenty-Five

Basics

Value: -3126 → -3125 → -3124

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 5 ⁵

Divisors: 1, 5, 25, 125, 625, 3125

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110000110101

Octal: -6065

Duodecimal: -1985

Hexadecimal: -c35

Square: 9765625

Square Root: 55.90169943749474

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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

Triangle read by rows: coefficients T(n,k) of a binomial decomposition of 1 as ∑_k=0..n T(n,k)*binomial(n,k). A244116

Triangle read by rows: terms of a binomial decomposition of 1 as Sum(k=0..n)T(n,k). A244117

Triangle read by rows: coefficients T(n,k) of a binomial decomposition of 2ⁿ-1 as Sum(k=0..n)T(n,k)*binomial(n,k). A244124

Triangle read by rows: terms T(n,k) of a binomial decomposition of 2ⁿ-1 as Sum(k=0..n)T(n,k). A244125

a(n) = (1-n)^n-1. A177885

Image of partition numbers (A000041) under "little Hankel" transform that sends [c₀, c₁, ...] to [d₀, d₁, ...] where d_n = c_n² - c_n+1*c_n-1. A56222

Triangle of Lehmer-Comtet numbers of 2nd kind. A39621

Triangle T(n,k) read by rows: T(n,n) = -1, T(n,0) = 5^{n - 1}, T(n,k) = -5^{n - k - 1}, 1 <= k <= n - 1. A152572

a(n) = ∑_k=1..n (-1)^k-1 * binomial(k+2,3) * floor(n/k). A366938

Matrix inverse of triangle A088956. A215534