Properties of the Number -100

One Hundred

Basics

Value: -101 → -100 → -99

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 1

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 5 ²

Divisors: 1, 2, 4, 5, 10, 20, 25, 50, 100

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100100

Octal: -144

Duodecimal: -84

Hexadecimal: -64

Square: 10000

Square Root: 10

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 T(n,k) = k! * Stirling1(n,k), 1<=k<=n. A48594

a(n) = ∑_k=0..n (-1)^k * binomial(n, k) * q(k), where q(k) is A000009 (partitions into distinct parts). A293467

Triangle of coefficients of certain polynomials used with prime numbers as variables in the computation of the array A103728. A103718

Scaled coefficient table for Chebyshev polynomials 2·T(2·n, sqrt(x)/2) (increasing even scaled powers, without zero entries). A127677

Alternating factorials: 0! - 1! + 2! - ... + (-1)ⁿ n! A58006

Riordan array ((1-x)/(1+x), x/(1+x)²). A110162

Triangle of coefficients of (1 - x)ⁿ*b(x/(1 - x),n), where b(x,n) is the Morgan-Voyce polynomial related to A085478. A123019

Irregular triangle read by rows: row n is the expansion of (1 + 2·x - x²)ⁿ. A123199

a(n) = ∑_k=1..n (-1)^k*k·floor(n/k). A24919

Expansion of η(q)⁵ / η(q⁵) in powers of q. A109064