Properties of the Number 71388

Seventy-One Thousand Three Hundred Eighty-Eight

Basics

Value: 71387 → 71388 → 71389

Parity: even

Prime: No

Previous Prime: 71387

Next Prime: 71389

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ³ × 661

Divisors: 1, 2, 3, 4, 6, 9, 12, 18, 27, 36

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001011011011100

Octal: 213334

Duodecimal: 35390

Hexadecimal: 116dc

Square: 5096246544

Square Root: 267.1853289385478

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 integer partitions of n whose distinct parts have integer median. A360686

Triangle T(n,k), read by rows n>=0 with terms k=1..3ⁿ, where row n lists the coefficients in the n-th iteration of x*(1+x)². A166888

Numbers k such that the cardinality of the set of solutions to φ(x) = k is a prime. A71388

Coefficients of xⁿ in the (n-1)-th iterations of x*(1+x)² for n>=1. A154256

Coefficients of xⁿ in the (n+1)-th iteration of x*(1+x)² for n>=1. A166889