Properties of the Number 87719

Eighty-Seven Thousand Seven Hundred Nineteen

Basics

Value: 87718 → 87719 → 87720

Parity: odd

Prime: Yes

Previous Prime: 87701

Next Prime: 87721

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 87719

Divisors: 1, 87719

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101011010100111

Octal: 253247

Duodecimal: 4291B

Hexadecimal: 156a7

Square: 7694622961

Square Root: 296.1739353825721

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

Values of A167053(k)-A167053(k-1)-1 not equal to 1. A167054

Primes of the form 3·m² - 4. A201716

a(n) is smallest prime > 2·a(n-1), a(1) = 3. A65545

Numbers k such that 90·R_k + 7 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A56662

a(1) = 1; a(n) = nextprime(2·a(n-1)) for n > 1. A110930

Number of n-bead necklaces labeled with numbers -1..1 not allowing reversal, with sum zero and three times sum of squares <= n*(1)*(1+1). A208807

Least number m such that the number of numbers k <= m with k > spf(k)ⁿ exceeds the number of numbers with k <= spf(k)ⁿ. A87719