Properties of the Number 75521

Seventy-Five Thousand Five Hundred Twenty-One

Basics

Value: 75520 → 75521 → 75522

Parity: odd

Prime: Yes

Previous Prime: 75511

Next Prime: 75527

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 75521

Divisors: 1, 75521

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010011100000001

Octal: 223401

Duodecimal: 37855

Hexadecimal: 12701

Square: 5703421441

Square Root: 274.8108440364026

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

First term of balanced prime quartets: p(m+1)-p(m) = p(m+2)-p(m+1) = p(m+3)-p(m+2). A54800

Initial prime in set of 4 consecutive primes with common difference 6. A33451

Primes p such that p, p+6, p+12, p+18 are consecutive primes and p=6·k+5 for some k. A90834

Primes of the form 512n+257. A105131

Primes p such that the differences between the 5 consecutive primes starting with p are (6,6,6,2). A78968

Primes p such that p plus the cube of sum of digits of p is a perfect square. A259418

The first of three consecutive primes the sum of which is equal to the sum of three consecutive octagonal numbers. A298313

Cototient of 2ⁿ + 1. A53286

a(n) = 840·n² - 23100·n + 86861. A216257

Primes p such that reversal(p) - 13 is a square. A176371