Properties of the Number -70687

Seventy Thousand Six Hundred Eighty-Seven

Basics

Value: -70688 → -70687 → -70686

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 70687

Divisors: 1, 70687

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10001010000011111

Octal: -212037

Duodecimal: -34AA7

Hexadecimal: -1141f

Square: 4996651969

Square Root: 265.8702691163493

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 of the form 8·k² - 1. A90684

Successive prime sums of the squares forming A347333. A347334

a(n) = ∑_k=1..n (k·floor(n/k))³. A356249

Numbers k such that k-1 and k+1 are each the product of exactly 7 primes, counted with multiplicity. A157487

Numbers k such that 2^k-1 == 1 + b·k (mod k²), where b divides k-1. A186645

Numbers n such that (16ⁿ + 5ⁿ)/21 is prime. A225397

Primes such that the next 10 prime gaps are all distinct. A372550

Primes having only {0, 6, 7, 8} as digits. A386082

Numbers k such that 2^k-1 == 1 + b·k (mod k²), where b divides k - 2^p for some integer p >= 0 and 2^p <= b. A186884