Properties of the Number 87539

Eighty-Seven Thousand Five Hundred Thirty-Nine

Basics

Value: 87538 → 87539 → 87540

Parity: odd

Prime: Yes

Previous Prime: 87523

Next Prime: 87541

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 87539

Divisors: 1, 87539

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010111110011

Octal: 252763

Duodecimal: 427AB

Hexadecimal: 155f3

Square: 7663076521

Square Root: 295.86990384288833

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

Primes that remain prime through 3 iterations of the function f(x) = 2·x + 1. A23272

Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[2, 6,6]; short d-string notation of pattern = [266]. A78849

Primes starting a Cunningham chain of the first kind of length 4. A59763

Primes p such that p+2, 2p+1, and 2p+3 are also prime. A69142

Primes of the form 4·k-1 such that 8·k-1, 16·k-1 and 32·k-1 are also primes. A101795

Consider the Euler totient function of a number x. Take the sum of its digits. Repeat the process deleting the first addendum and adding the previous sum. The sequence lists the numbers that after some iterations reach x. A269309

Primes p such that the differences between the 5 consecutive primes starting with p are (2,6,6,4). A78950

a(n) = prime(k) with k = n² + prime(n)². A243892

Numbers n such that n is a twin prime and 2n + 1 is a twin prime. A261463

Lesser of twin primes P(k) and P(k+1) such that Sd(P(k)) + Sd(P(k+1)) = Sd(k) + Sd(k+1), where Sd(x) is the sum of digits of x. A277111