Properties of the Number 8379

Eight Thousand Three Hundred Seventy-Nine

Basics

Value: 8378 → 8379 → 8380

Parity: odd

Prime: No

Previous Prime: 8377

Next Prime: 8387

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

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

Irregular triangle read by rows: Whitney numbers of the second kind a(n,k), n >= 1, k >= 0, for the star poset. A7799

Sum of divisors of twice square numbers. A65765