Properties of the Number 81299

Eighty-One Thousand Two Hundred Ninety-Nine

Basics

Value: 81298 → 81299 → 81300

Parity: odd

Prime: Yes

Previous Prime: 81293

Next Prime: 81307

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 81299

Divisors: 1, 81299

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110110010011

Octal: 236623

Duodecimal: 3B06B

Hexadecimal: 13d93

Square: 6609527401

Square Root: 285.12979500571316

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 compositions of n that are both a reversed necklace and a co-necklace. A334271

G.f.: A(x) = exp( ∑_n>=1 [∑_k=0..n C(n,k)³ * x^k / A(x)^k] * xⁿ/n ). A198950

Primes that are the sum of some number of consecutive prime squares. A376916

a(n) is the smallest prime that starts the first occurrence of exactly n consecutive primes in A381019. A381616

Diagonal of square array A081297. A81299

Number of nX4 0..1 arrays with every element unequal to 2, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A320360