Properties of the Number 40720

Forty Thousand Seven Hundred Twenty

Basics

Value: 40719 → 40720 → 40721

Parity: even

Prime: No

Previous Prime: 40709

Next Prime: 40739

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ⁴ × 5 × 509

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001111100010000

Octal: 117420

Duodecimal: 1B694

Hexadecimal: 9f10

Square: 1658118400

Square Root: 201.79197209007103

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 cells in regular n-gon after 2 generations of mitosis. A349807

Absolute value of coefficient of x³ in polynomial whose zeros are 5 consecutive integers starting with the n-th integer. A127694

Numbers k that can be written as the sum of a perfect square and a factorial in at least 2 distinct ways. A358071

a(n) = (9·n⁴+10·n³-3·n²-4·n)/12. A172045

Number of length 3 0..n arrays with each partial sum starting from the beginning no more than sqrt(2) standard deviations from its mean. A244906

Expansion of sqrt(1-4x)/(1-2x²). A106193

Number of line segments connecting exactly 5 points in an n·n grid of points. A177721

Table read by antidiagonals: T(n,k) (n >= 3, k >= 0) is the number of cells in a regular n-gon after k generations of mitosis. A350000

Number of 4Xn 0..3 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling three exactly once. A269279

Number of 4Xn 0..3 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling three no more than once. A269292