Properties of the Number 86072

Eighty-Six Thousand Seventy-Two

Basics

Value: 86071 → 86072 → 86073

Parity: even

Prime: No

Previous Prime: 86069

Next Prime: 86077

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 7 × 29 × 53

Divisors: 1, 2, 4, 7, 8, 14, 28, 29, 53, 56

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101000000111000

Octal: 250070

Duodecimal: 41988

Hexadecimal: 15038

Square: 7408389184

Square Root: 293.38029927041794

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 8·10^k + 5·R_k + 4 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A103086

Number of 1's in decimal expansion of triangular number n(n+1)/2. A86072

O.g.f. A(x) satisfies: [xⁿ] exp( n*(n-1)*x·A(x) ) / A(x)^n-1 = 0 for n > 0. A393619