Properties of the Number 72869

Seventy-Two Thousand Eight Hundred Sixty-Nine

Basics

Value: 72868 → 72869 → 72870

Parity: odd

Prime: Yes

Previous Prime: 72859

Next Prime: 72871

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 72869

Divisors: 1, 72869

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001110010100101

Octal: 216245

Duodecimal: 36205

Hexadecimal: 11ca5

Square: 5309891161

Square Root: 269.9425864883124

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

Primes p such that p+2, (p²-1)/2+p and (p²+3)/2+3·p are also prime. A352948

Primes of the form p·q - 30, where p and q are consecutive primes. A229613

Primes p such that p+2, (p²-5)/2-p, (p²-1)/2+p, and (p²+3)/2+3·p are all prime. A352951

a(n) = σ(σ(n)-n), where σ = A000203, sum of the divisors of n. A72869