Properties of the Number 6870

Six Thousand Eight Hundred Seventy

Basics

Value: 6869 → 6870 → 6871

Parity: even

Prime: No

Previous Prime: 6869

Next Prime: 6871

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 229

Divisors: 1, 2, 3, 5, 6, 10, 15, 30, 229, 458

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101011010110

Octal: 15326

Duodecimal: 3B86

Hexadecimal: 1ad6

Square: 47196900

Square Root: 82.8854631404084

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

Number of partitions of n into nonprime parts. A2095

Expansion of 6-dimensional cusp form (η(q) * η(q³))⁶ in powers of q. A7332

Numbers k such that prime(k) + prime(k+1) is a square. A64397

T(n,k)=Number of nXk 0..1 arrays with row sums equal and column sums unequal to adjacent columns. A202742

Number of ordered triples of integers from [ 1..n ] with no global factor. A15631

A051838 gives numbers m such that the sum of first m primes divides the product of the first m primes. This sequence gives corresponding values of the sum of first m primes. A140763

Numbers k such that 4·k-1, 8·k-1, 16·k-1 and 32·k-1 are all primes. A101794

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0001 0101 or 0111. A259297

Least positive integer k such that k and k·n are terms of A259539. A259540

a(n) = 2·1 + 4·3 + 6·5 + 8·7 + 10·9 + 12·11 + ... + (up to the n-th term). A319866