Properties of the Number 61256

Sixty-One Thousand Two Hundred Fifty-Six

Basics

Value: 61255 → 61256 → 61257

Parity: even

Prime: No

Previous Prime: 61253

Next Prime: 61261

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 13 × 19 × 31

Divisors: 1, 2, 4, 8, 13, 19, 26, 31, 38, 52

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110111101001000

Octal: 167510

Duodecimal: 2B548

Hexadecimal: ef48

Square: 3752297536

Square Root: 247.49949494897965

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

T(n,k) = Number of (n+1) X (k+1) 0..2 arrays with each row nonprime and column prime, read as a base 3 number with top and left being the most significant digits. A262109

Oblong composite numbers m such that β(m) = τ(m)/2 - 1 where β(m) is the number of Brazilian representations of m and τ(m) is the number of divisors of m. A326384

Numbers k such that the digits of k³, reversed, include the digits of k as substring. A115762

a(n) = (9·n+4)*(9·n+5). A177073

Least number·such that xⁿ has n digits equal to k. Case k = 8. A285455

Degrees of irreducible representations of Thompson group Th. A3916

Numbers k such that 253·2^k+1 is prime. A32503

a(n) is the area of the largest rectangle that can be formed from n sticks whose lengths are 1, 2, ..., n. A381769

Number of (n+1)X(3+1) 0..2 arrays with each row nonprime and column prime, read as a base 3 number with top and left being the most significant digits. A262108

Number of (3+1)X(n+1) 0..2 arrays with each row nonprime and column prime, read as a base 3 number with top and left being the most significant digits. A262112