Properties of the Number 2528

Two Thousand Five Hundred Twenty-Eight

Basics

Value: 2527 → 2528 → 2529

Parity: even

Prime: No

Previous Prime: 2521

Next Prime: 2531

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ⁵ × 79

Divisors: 1, 2, 4, 8, 16, 32, 79, 158, 316, 632

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 100111100000

Octal: 4740

Duodecimal: 1568

Hexadecimal: 9e0

Square: 6390784

Square Root: 50.27922035990614

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

Numbers obtained by reinterpreting base-2 representation of n in primorial base: a(0) = 0, a(2n) = A276154(a(n)), a(2n+1) = 1 + A276154(a(n)). A276156

a(n) = 2·a(n-1) - 10·a(n-2), with a(0) = 0, a(1) = 1. A190958

Numbers k whose abundance σ(k) - 2·k = -16. Numbers k whose deficiency is 16. A125248

Numbers k for which A003415(k) >= A276086(k), where A003415 is the arithmetic derivative and A276086 is the primorial base exp-function. A351228

Numbers m such that m and m+1 are consecutive factorial base Niven numbers (A118363). A328205

a(n) = floor(n*φ¹⁴), where φ is the golden ratio, A001622. A4929

Product of the 5th power of a prime (A050997) and a different prime (p⁵*q). A178740

Number of partitions of n such that all parts, with the possible exception of the smallest, appear only once. A115029

Deficient-perfect numbers: Deficient numbers n such that n/(2n-σ(n)) is an integer. A271816

Expansion of ((1-x)/(1-2·x))⁴. A62109