Properties of the Number 71427

Seventy-One Thousand Four Hundred Twenty-Seven

Basics

Value: 71426 → 71427 → 71428

Parity: odd

Prime: No

Previous Prime: 71419

Next Prime: 71429

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 29 × 821

Divisors: 1, 3, 29, 87, 821, 2463, 23809, 71427

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001011100000011

Octal: 213403

Duodecimal: 35403

Hexadecimal: 11703

Square: 5101816329

Square Root: 267.25830202259385

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

T(n,k)=Number of 0..2 arrays of length n+2·k-1 with sum no more than 2·k in any length 2k subsequence (=50% duty cycle). A212232

a(n) = smallest k such that the digit sum of 7k is n. A77494

Number of 0..2 arrays of length n+7 with sum no more than 8 in any length 8 subsequence (=50% duty cycle). A212228

Number of 0..2 arrays of length 3+2·n with sum no more than 2·n in any length 2n subsequence (=50% duty cycle). A212236

Sprague-Grundy values for octal game .1337. A71427