Properties of the Number 70816

Seventy Thousand Eight Hundred Sixteen

Basics

Value: 70815 → 70816 → 70817

Parity: even

Prime: No

Previous Prime: 70793

Next Prime: 70823

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁵ × 2213

Divisors: 1, 2, 4, 8, 16, 32, 2213, 4426, 8852, 17704

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001010010100000

Octal: 212240

Duodecimal: 34B94

Hexadecimal: 114a0

Square: 5014905856

Square Root: 266.11275805567834

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) = ∑_{k=0..floor(n/2)} 2^k * binomial(2·k,2·n-4·k). A387762

Number of binary strings of length n with equal numbers of 00010 and 01001 substrings. A164215

Number of 3-step one or two space at a time rook's tours on an n X n board summed over all starting positions. A187288

Solutions to φ(gpf(x)) - gpf(φ(x)) = 65534 = c are special multiples of 65537, x=65537·k, where the largest prime factors of factor k were observed in {2, 3, 5, 17, 257}. A70816

Number of (n+2) X (5+2) 0..1 arrays with each 3 X 3 subblock having clockwise perimeter pattern 00000101 00010001 or 00010101. A260606