Properties of the Number 51766

Fifty-One Thousand Seven Hundred Sixty-Six

Basics

Value: 51765 → 51766 → 51767

Parity: even

Prime: No

Previous Prime: 51749

Next Prime: 51767

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 11 × 13 × 181

Divisors: 1, 2, 11, 13, 22, 26, 143, 181, 286, 362

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1100101000110110

Octal: 145066

Duodecimal: 25B5A

Hexadecimal: ca36

Square: 2679718756

Square Root: 227.52142756232874

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

Triangle read by rows: T(n,k) (0<=k<=n) given by T(n,0)=1, T(n,n) = binomial(2n,n); otherwise T(n,k) = T(n,k-1)+T(n-1,k). A274292

a(n) = binomial(n,0) - binomial(n,2) + binomial(n,4). A58923

Number of noncrossing partitions of an n-set with distinct block sizes. A361529

Number of plane partitions of n with 5 parts. A391659

Number of chiral noninvertible prime knots with n crossings. A51766

Denominators for a rational approximation to Euler constant. A217767