Properties of the Number 15028

Fifteen Thousand Twenty-Eight

Basics

Value: 15027 → 15028 → 15029

Parity: even

Prime: No

Previous Prime: 15017

Next Prime: 15031

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 13 × 17 ²

Divisors: 1, 2, 4, 13, 17, 26, 34, 52, 68, 221

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11101010110100

Octal: 35264

Duodecimal: 8844

Hexadecimal: 3ab4

Square: 225840784

Square Root: 122.58874336577564

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

Expansion of ∏_m>=1 1/(1-x^m)^A000009(m). A89259

T(n,k)=Number of nXk 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. A281056

T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change -2,-2 -1,0 0,1 or 1,0. A264534

13 times the squares: a(n) = 13·n². A152742

Expansion of (1 + x - x³ - 2·x⁴)/(1 - x² - x³ - x⁴ - x⁵). A109544

Numbers that are the sum of eight fourth powers in seven or more ways. A345582

Numbers that are the sum of eight fourth powers in exactly seven ways. A345839

Primitive terms of A388034. A388035

Expansion of x*(1+11·x-10·x³)/(1-12·x²+10·x⁴). A249312

Numbers n such that the sum of prime factors of n (counted with repetition) equals three times the largest prime divisor. A212861