Properties of the Number -7917

Nine Hundred Seventeen

Basics

Value: -7918 → -7917 → -7916

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 13 × 29

Divisors: 1, 3, 7, 13, 21, 29, 39, 87, 91, 203

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -1111011101101

Octal: -17355

Duodecimal: -46B9

Hexadecimal: -1eed

Square: 62678889

Square Root: 88.97752525216691

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) = -a(n-1) - 2·a(n-2). A1607

Expansion of 1/(1 - 3·x + 4·x²). A49072

Expansion of e.g.f.: cosh(sinh(x)+log(x+1))=1+4/2!*x²-6/3!*x³+43/4!*x⁴-170/5!*x⁵... A13022

Number of ways to partition 2n+1 into distinct positive integers. A78408

Lucas and Lehmer numbers with parameters (1 +- sqrt(-7))/2. A107920

Numbers m such that there are precisely 7 groups of order m. A249550

a(n) = (2·n+5)*(2·n+1). A78371

Numbers k such that k² divides 16^k-1. A128396

a(n) = n*(9·n - 1)/2. A22266

Number of ways to split a strict integer partition of n into contiguous subsequences all having different sums. A336132