Properties of the Number 40291

Forty Thousand Two Hundred Ninety-One

Basics

Value: 40290 → 40291 → 40292

Parity: odd

Prime: No

Previous Prime: 40289

Next Prime: 40343

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 43 × 937

Divisors: 1, 43, 937, 40291

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001110101100011

Octal: 116543

Duodecimal: 1B397

Hexadecimal: 9d63

Square: 1623364681

Square Root: 200.7261816505261

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 nodes in regular n-gon with all diagonals drawn. A7569

Number of length n binary sequences with at most 3 of every 6 adjacent bits set. A133551

Minimum positive integer such that length of the gap described at A109322 is exactly n (in contrast to A109322 where the gap length is >= n). A110875

a(n) is the minimum positive integer j such that [j, j+n-1] does not contain any values of σ(k) (i.e., sum of all positive divisors of k). A109322

A109322 with duplicates removed. A109323

Integers for which the smallest k in A067760 such that n + 2^k is prime increases. A263874

Triangle T, read by rows, such that the matrix cube shifts T one place diagonally left and upward, with T(n, 0) = T(n, n) = 1 for n>=0. A96744

Number of colored integer partitions of n using all colors of a 3-set such that a color pattern for part i has i distinct colors in increasing order. A327842

The smallest number in base n such that two digits (and no fewer) need to be changed to get a prime. A370531

Odd k for which k+2^m is composite for all m < k. A33919