Properties of the Number 72070

Seventy-Two Thousand Seventy

Basics

Value: 72069 → 72070 → 72071

Parity: even

Prime: No

Previous Prime: 72053

Next Prime: 72073

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 × 7207

Divisors: 1, 2, 5, 10, 7207, 14414, 36035, 72070

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001100110000110

Octal: 214606

Duodecimal: 3585A

Hexadecimal: 11986

Square: 5194084900

Square Root: 268.45856291055424

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

Numbers n such that n is a substring of its square in base 3 (written in base 10). A18827

First row of infinite array A(j,k): A(j,1) = j-1; A(1,k) = A(2,k-1); for j, k > 1, A(j,k) = A(j-1,k) - A(j+1,k-1) if that number is positive and not already in column k, A(j,k) = A(j-1,k) + A(j+1,k-1) otherwise. A140985

Number of 3Xn arrays containing n copies of 0..3-1 with no element plus any vertical or antidiagonal neighbor equal to 3-1. A266043

Number of integer solutions to the equation 4·x² + y² + 8·z² = n. A72070

Number of 6Xn 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 0 vertically. A207964