Properties of the Number 70186

Seventy Thousand One Hundred Eighty-Six

Basics

Value: 70185 → 70186 → 70187

Parity: even

Prime: No

Previous Prime: 70183

Next Prime: 70199

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 19 × 1847

Divisors: 1, 2, 19, 38, 1847, 3694, 35093, 70186

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001001000101010

Octal: 211052

Duodecimal: 3474A

Hexadecimal: 1122a

Square: 4926074596

Square Root: 264.92640487501427

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) = a(1)*a(n-1) + a(2)*a(n-2) + ... + a(n-1)*a(1) for n >= 4. A25262

Recamán Fibonacci variation: a(1)=1; a(2)=2; for n > 2, a(n) = a(n-1)+a(n-2)-F(n) if that number is positive and not already in the sequence, otherwise a(n) = a(n-1)+a(n-2)+F(n) where F(n) denotes the n-th Fibonacci number. A79053

Number of words of length n in a simple grammar. A56010

Number of regions in a "cross" of width 3 and height n (see Comments for definition). A331455

Irregular array where the n-th row are the divisors, not occurring earlier in the sequence, of the sum of the terms in all previous rows. a(1)=2. A120576

Primes p such that x¹⁰ = 2 has a solution mod p, but x^10² = 2 has no solution mod p. A70186