Properties of the Number -870871

Eight Hundred Seventy Thousand Eight Hundred Seventy-One

Basics

Value: -870872 → -870871 → -870870

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 870871

Divisors: 1, 870871

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11010100100111010111

Octal: -3244727

Duodecimal: -35BB87

Hexadecimal: -d49d7

Square: 758416298641

Square Root: 933.2046935158438

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

Smallest prime which is 1 more than a product of n distinct primes: a(n) is a prime and a(n) - 1 is a squarefree number with n prime factors. A73918

Primes p at which φ(p-1)/(p-1) reaches a new minimum, where φ is Euler's totient function. A241196

Primes of the form 30030·p + 1 where p is a prime. A51651

Numbers n such that φ(n)/φ(φ(n)) > φ(m)/φ(φ(m)) for all m < n. A289125

a(n) = 1 - (7/6)*n + (2/3)*n³ + (1/2)*n⁴. A46998

Numbers k such that ψ(φ(k))/k > ψ(φ(m))/m for all m < k, where φ is Euler's totient function (A000010) and ψ is the Dedekind ψ function (A001615). A293712