Properties of the Number 68143

Sixty-Eight Thousand One Hundred Forty-Three

Basics

Value: 68142 → 68143 → 68144

Parity: odd

Prime: No

Previous Prime: 68141

Next Prime: 68147

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 83 × 821

Divisors: 1, 83, 821, 68143

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000101000101111

Octal: 205057

Duodecimal: 33527

Hexadecimal: 10a2f

Square: 4643468449

Square Root: 261.04214219163924

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

Composite and every divisor (except 1) contains the digit 8. A62678

Number of partitions p of n such that (number of odd numbers in p) is a part of p. A241545

Strong pseudoprimes to base 28. A20254

Strong pseudoprimes to base 63. A20289

a(0) = 0, and for n > 0, (a(n)) gives the indices n for which d(n) < d(k) for k < n, where d is the difference sequence of (cos k + sin k). A299640

Triangular numbers which are products of triangular numbers larger than 1. A68143