Properties of the Number -8379

Three Hundred Seventy-Nine

Basics

Value: -8380 → -8379 → -8378

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 7 ² × 19

Divisors: 1, 3, 7, 9, 19, 21, 49, 57, 63, 133

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10000010111011

Octal: -20273

Duodecimal: -4A23

Hexadecimal: -20bb

Square: 70207641

Square Root: 91.53687781435414

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

Inverse of Riordan array (1/(1-x), x/(1-x)³), A109955. A109956

E.g.f.: cos(log(x+1)-sin(x))= 1-3/4!*x⁴+30/5!*x⁵-180/6!*x⁶+1113/7!*x⁷... A13214

Numbers k such that k divides 4^k - 1. A14945

a(n) = n + (n+1)² + (n+2)³. A27620

Concentric 19-gonal numbers. A195048

Numbers having exactly three representations by the quadratic form x²+xy+y² with 0<=x<=y. A198774

Numbers that are the sum of four positive cubes in four or more ways. A343971

Number of noncrossing trees with n edges in which no border edges emanate from the root. A102594

a(n) = n*(n + 11)*(n + 22)/6. A264445

Numbers that are the sum of four positive cubes in exactly four ways. A343972