Properties of the Number -22839

Twenty-Two Thousand Eight Hundred Thirty-Nine

Basics

Value: -22840 → -22839 → -22838

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 23 × 331

Divisors: 1, 3, 23, 69, 331, 993, 7613, 22839

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101100100110111

Octal: -54467

Duodecimal: -11273

Hexadecimal: -5937

Square: 521619921

Square Root: 151.1257754322538

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

Number of ways to cover (without overlapping) a ring lattice (necklace) of n sites with molecules that are 6 sites wide. A58367

Number of partitions of n such that the least part occurs exactly four times. A97092

Ulam's spiral (ESE spoke). A143855

Expansion of g²/(1 - x²*g), where g = 1+x·g³ is the g.f. of A001764. A391122

Constant term of the reduction by x² -> x+1 of the polynomial p(n,x) defined at Comments. A192962

a(n) = ∑_k=1..n σ(k)*σ(2·k), where σ(n) = A000203(n) is the sum of the divisors of n. A347108

a(n) = n * (11·n² + 6·n + 1) / 6. A215646

Numbers k such that k·floor(2^k/k) + 1 is prime. A270427

Number of ordered quadruples of integers from [ 1,n ] with no common factors between triples. A15635