Properties of the Number 51217

Fifty-One Thousand Two Hundred Seventeen

Basics

Value: 51216 → 51217 → 51218

Parity: odd

Prime: Yes

Previous Prime: 51203

Next Prime: 51229

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 51217

Divisors: 1, 51217

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100100000010001

Octal: 144021

Duodecimal: 25781

Hexadecimal: c811

Square: 2623181089

Square Root: 226.31173190977086

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 obtained from other primes by prefixing a 5. A165555

Primes of the form p² + q² - 1 where p and q are consecutive primes. A227340

Smallest nontrivial extension of n-th cube which is a prime. A30692

Starting positions of strings of four 0's in the decimal expansion of π. A83598

Centered 11-gonal (or hendecagonal) primes. A262344

a(n) = 3·a(n-1) - 3·a(n-2) + a(n-3) + a(n-4) with a(1) = 1, a(2) = 2, a(3) = 4, and a(4) = 7. A385106

Integers with the property that there exists a nontrivial partition such that the digit sum of both partitions is equal. A83967

Nonnegative numbers of the form 6^x - y². A51217