Properties of the Number 61217

Sixty-One Thousand Two Hundred Seventeen

Basics

Value: 61216 → 61217 → 61218

Parity: odd

Prime: No

Previous Prime: 61211

Next Prime: 61223

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 13 × 17 × 277

Divisors: 1, 13, 17, 221, 277, 3601, 4709, 61217

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110111100100001

Octal: 167441

Duodecimal: 2B515

Hexadecimal: ef21

Square: 3747521089

Square Root: 247.42069436488129

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

Let p = n-th prime == 3 mod 8; a(n) = (sum of quadratic residues mod p that are < p/2) + (sum of all quadratic residues mod p). A282727

Numbers that are the sum of ten fifth powers in three or more ways. A345635

Numbers that are the sum of ten fifth powers in exactly three ways. A346348

7-step Fibonacci sequence starting with (0,0,0,0,1,0,0). A251711

Consecutive states of the linear congruential pseudo-random number generator (421·s + 17117) mod 81000 when started at s=1. A385338

Numbers with sum of digits equaling 17, divisible by 17, and containing the string "17". A346904

Number of zeros in the concatenation n(n-1)(n-2)(n-3)...321. A61217