Properties of the Number 87641

Eighty-Seven Thousand Six Hundred Forty-One

Basics

Value: 87640 → 87641 → 87642

Parity: odd

Prime: Yes

Previous Prime: 87631

Next Prime: 87643

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 87641

Divisors: 1, 87641

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101011001011001

Octal: 253131

Duodecimal: 42875

Hexadecimal: 15659

Square: 7680944881

Square Root: 296.04222671774374

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) is the number of points in the interior of the n-th figure shown in A255011 (meaning the figure with 4n points on the perimeter). A334690

Primes p such that the sum of the primes from 2 through p is a palindrome. A38584

Primes of the form 16·m² + 25 for m=1,2,3,... A87857

Numbers n such that n and the four successive integers produce primes if substituted for·in the polynomial 5x²+5x+1. See A090562, A090563. Terms show that longer similar chains also exist. A90100

Lesser of twin primes p1 such that p1·p2-4 and p1·p2-6 are twin prime numbers. A174957

Twin primes with both terms having distinct digits in descending order. A261511

Start of the first sequence of exactly n consecutive pairs of twin primes. A87641