Properties of the Number 76871

Seventy-Six Thousand Eight Hundred Seventy-One

Basics

Value: 76870 → 76871 → 76872

Parity: odd

Prime: Yes

Previous Prime: 76847

Next Prime: 76873

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 76871

Divisors: 1, 76871

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10010110001000111

Octal: 226107

Duodecimal: 3859B

Hexadecimal: 12c47

Square: 5909150641

Square Root: 277.25619920932337

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 p such that φ(φ(p-2)-1) = φ(φ(p-1)-1). A271660

List of strictly non-palindromic twin primes {p, p+2}. A138329

Lesser of twin primes such that both twin primes have no bases b, 1 < b < p-1, in which p is a palindrome. A138348

Primes of the form 5n² - 9. A201790

Sum of two powerful numbers (definition (1), A001694). A76871

Smallest semiprime whose decimal expansion consists of the concatenation of a 1-digit semiprime, a 2-digit semiprime, a 3-digit semiprime, ..., and an n-digit semiprime. A215647

T(n,k)=Number of nXk 0..2 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 3. A239361