Properties of the Number 72146

Seventy-Two Thousand One Hundred Forty-Six

Basics

Value: 72145 → 72146 → 72147

Parity: even

Prime: No

Previous Prime: 72139

Next Prime: 72161

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 36073

Divisors: 1, 2, 36073, 72146

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001100111010010

Octal: 214722

Duodecimal: 35902

Hexadecimal: 119d2

Square: 5205045316

Square Root: 268.6000744601535

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 nX4 0..4 arrays with each element equal to the number its horizontal and vertical zero neighbors. A197050

McKay-Thompson series of class 36C for Monster. A58646

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (1, 0, -1), (1, 0, 1), (1, 1, 1)}. A150958

a(n) is the numerator of the probability that the procedure described in A372422 successfully ends with the selection of a single person, starting with n persons. A372482

Numbers n with property that n sets a new record for the length of the preperiodic part of the 'Reverse and Subtract' trajectory of n. A72146