Properties of the Number 61729

Sixty-One Thousand Seven Hundred Twenty-Nine

Basics

Value: 61728 → 61729 → 61730

Parity: odd

Prime: Yes

Previous Prime: 61723

Next Prime: 61751

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 61729

Divisors: 1, 61729

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111000100100001

Octal: 170441

Duodecimal: 2B881

Hexadecimal: f121

Square: 3810469441

Square Root: 248.45321491178174

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

Prime numbers ending in Hardy-Ramanujan number 1729. A193742

Number of strings of numbers x(i=1..7) in 0..n with sum i⁴*x(i) equal to 2401·n. A184353

Primes of the form 9n³-2. A200961

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 33. A31621

Start with 0; to get next term reverse digits and add 1 to each digit (9's get replaced by 10's). A61729