Properties of the Number 70680

Seventy Thousand Six Hundred Eighty

Basics

Value: 70679 → 70680 → 70681

Parity: even

Prime: No

Previous Prime: 70667

Next Prime: 70687

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 5 × 19 × 31

Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001010000011000

Octal: 212030

Duodecimal: 34AA0

Hexadecimal: 11418

Square: 4995662400

Square Root: 265.8571044753177

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

Expansion of (-1 + ∏_k>=1 1 / (1 + (-x)^k))⁴. A341243

Amicable triples. Sequence gives σ values: A125490(n) + A125491(n) + A125492(n). A137231

a(n) = 4·3*2·1 - 8·7*6·5 + 12·11·10·9 - 16·15·14·13 + ... - (up to the n-th term). A319887

First differences of A069474, successive differences of (n+1)⁶-n⁶. A69475

a(n) = a(n-1) + a(n-4); first four terms are 0,1,2,3. A78467

Number of (n+4)X7 binary arrays with every 5X5 subblock commuting with each horizontal and vertical neighbor 5X5 subblock. A186603

Number of fixed points over all unlabeled functions on n nodes. A217898

Numbers k such that 7·10^k - 99 is prime. A294632

Smallest m in range 1..φ(n) such that 11^m == 1 mod n, or 0 if no such number exists. A70680

Even Achilles numbers. A390952