Properties of the Number 15138

Fifteen Thousand One Hundred Thirty-Eight

Basics

Value: 15137 → 15138 → 15139

Parity: even

Prime: No

Previous Prime: 15137

Next Prime: 15139

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 29 ²

Divisors: 1, 2, 3, 6, 9, 18, 29, 58, 87, 174

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11101100100010

Octal: 35442

Duodecimal: 8916

Hexadecimal: 3b22

Square: 229159044

Square Root: 123.03657992645927

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

a(n) = 18·n². A195321

Averages of twin prime pairs k such that k·2 and k/2 are squares. A154670

Number of isomorphism classes of nanocones with 3 pentagons and a nearsymmetric boundary of length n. A198014

Numbers m with m - 1, m + 1 and q(m) + 1 all prime, where q(.) is the strict partition function (A000009). A235344

Sum of all the parts in the partitions of n into 7 parts. A308926

Numbers m with m-1, m+1 and prime(m)+2 all prime. A259539

Collatz-2 (A063041) trajectory starting at 29. A63044

Even refactorable numbers k such that the number r of odd divisors of k and the number s of even divisors of k are both odd divisors of k. A120361

Positions k where A348733(k) is not multiplicative. A348740

a(n) is the Wiener index of a sling on n+1 vertices. A349417