Properties of the Number 61244

Sixty-One Thousand Two Hundred Forty-Four

Basics

Value: 61243 → 61244 → 61245

Parity: even

Prime: No

Previous Prime: 61231

Next Prime: 61253

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 61 × 251

Divisors: 1, 2, 4, 61, 122, 244, 251, 502, 1004, 15311

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110111100111100

Octal: 167474

Duodecimal: 2B538

Hexadecimal: ef3c

Square: 3750827536

Square Root: 247.47525128788132

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

Irregular table read by rows: Place a point on the integer coordinates, up to |n|, along all four axial directions on a Cartesian plane, and then join an infinite straight line between every pair of points: T(n,k) is the number of k-sided finite polygons formed, for k>=3, in the resulting graph. A386562

a(n) = (9·n+1)*(9·n+8). A1534

Prime numbers with odd digits in ascending order. A61244

Number of set partitions of [n] such that all absolute differences between least elements of consecutive blocks and between consecutive elements within the blocks are not larger than five. A287584

Number of nX4 0..1 arrays with no element equal to exactly one horizontal or vertical neighbor, with new values 0..1 introduced in row major order. A240652