Properties of the Number -6920

Nine Hundred Twenty

Basics

Value: -6921 → -6920 → -6919

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 5 × 173

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 173, 346

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101100001000

Octal: -15410

Duodecimal: -4008

Hexadecimal: -1b08

Square: 47886400

Square Root: 83.18653737234169

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

Expansion of (1+x²)/(1+x²+x⁵). A88002

a(n) = ∑_k=0..n (-1)^k * binomial(5·k,n-k). A360089

G.f. A(x) satisfies: 1/(1 + x) = A(x)*A(x²)²*A(x³)³*A(x⁴)⁴* ... *A(x^k)^k* ... A307657

a(n) = n·prime(n). A33286

Number of integer partitions of n whose maximal anti-runs have distinct maxima. A375133

Numbers n such that there are equal numbers of 0's and 1's in first n digits of binary representation of π. A39624

Position of A075165(n) in A014486 plus one. A75163

Expansion of ∏_k>=1 1/(1 + x^k)^k*(k+1/2). A294846

Smallest member of three consecutive numbers each of which is the sum of two nonzero squares (not necessarily different). A64716

Numbers m such that 4^m reversed is prime. A350441