Properties of the Number 69642

Sixty-Nine Thousand Six Hundred Forty-Two

Basics

Value: 69641 → 69642 → 69643

Parity: even

Prime: No

Previous Prime: 69623

Next Prime: 69653

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 53 × 73

Divisors: 1, 2, 3, 6, 9, 18, 53, 73, 106, 146

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001000000001010

Octal: 210012

Duodecimal: 34376

Hexadecimal: 1100a

Square: 4850008164

Square Root: 263.89770745499095

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

Number of partitions of n into exactly 6 different parts with distinct multiplicities. A212117

Numbers k such that 263·2^k-1 is prime. A50890

a(n) = 1 + n·binomial(2·n,n) - n²*(n² - 2·n + 3)/2. A289720

Let M_n be the n X n matrix with M_n(i,j)=1/(i+j+3); then a(n)=1/det(M_n). A69642