Properties of the Number 23791

Twenty-Three Thousand Seven Hundred Ninety-One

Basics

Value: 23790 → 23791 → 23792

Parity: odd

Prime: No

Previous Prime: 23789

Next Prime: 23801

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 37 × 643

Divisors: 1, 37, 643, 23791

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101110011101111

Octal: 56357

Duodecimal: 11927

Hexadecimal: 5cef

Square: 566011681

Square Root: 154.2433142797444

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

The least number s having exactly n threes in the continued fraction of sqrt(s). A206583

Number of integer partitions of n whose parts do not have weakly decreasing numbers of prime factors (A001222). A358910

Semiprimes generated by the polynomial 2·n² + 29. A241554

Number of stereoisomers of acyclic hydrocarbons with n carbon atoms. A36672

Number of (w,x,y,z) with all terms in {0,...,n} and (least gapsize)<2. A212896

Triangle T(n,f): the number of signed cubic graphs on 2n vertices with f edges of the first sign. A321305

Composite numbers of the form 2·k² + 29. A352949

a(1)=1, a(n)=2·a(n-1)+1 if that number is composite, a(n)=a(n-1)+1 otherwise. A81871

Bases with a record -- new or tie -- smallest 'stem value' for which a prime by concatenation of decrements exists. A220402

Katadromes: digits in base 9 are in strict descending order. A23791