Properties of the Number 70216

Seventy Thousand Two Hundred Sixteen

Basics

Value: 70215 → 70216 → 70217

Parity: even

Prime: No

Previous Prime: 70207

Next Prime: 70223

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 67 × 131

Divisors: 1, 2, 4, 8, 67, 131, 134, 262, 268, 524

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001001001001000

Octal: 211110

Duodecimal: 34774

Hexadecimal: 11248

Square: 4930286656

Square Root: 264.98301832381634

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=1..n gcd(k, n)⁴. A343498

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 1 0 vertically. A208287

Number of cyclic subgroups of the group C_n x C_n x C_n x C_n, where C_n is the cyclic group of order n. A280184

a(n) is the number of negative Euler permutations of order n. A347602

a(1)=1. a(n) = sum of earlier terms, a(k) (1<=k<=n-1), where gcd(a(k),n) is squarefree. A122169

Sum of binary palindromes p < 2ⁿ. A206918

Number of n X 7 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 1 0 vertically. A208286

Number of 4 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 1 0 vertically. A208288

Triangle T(n, k) = n² + k², 1 <= k <= n, read by rows. A70216

a(n) is the number of positive Euler permutations of order n. A347601