Properties of the Number 38840

Thirty-Eight Thousand Eight Hundred Forty

Basics

Value: 38839 → 38840 → 38841

Parity: even

Prime: No

Previous Prime: 38839

Next Prime: 38851

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 5 × 971

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 971, 1942

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001011110111000

Octal: 113670

Duodecimal: 1A588

Hexadecimal: 97b8

Square: 1508545600

Square Root: 197.0786644972002

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 polyominoes with n cells that have the symmetry group D₈. A142886

Number of edges formed in a square by straight line segments when connecting the four corner vertices to the points dividing the sides into n equal parts. A355948

Sum of the asymmetry degrees of all compositions of n with parts in {1,4}. A276063

Numbers k such that φ(k) + φ(k+1) = k. A67796

s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (odd natural numbers), t = A001950 (upper Wythoff sequence). A25114

Row sums of A335436. A335087

Numbers which are the sum of two distinct perfect powers x^k + y^m with x, y, k, m >= 2. A298591

Cubes that are concatenations of primes. A38840

Number of length n+6 0..3 arrays with at most two downsteps in every 6 consecutive neighbor pairs. A255658

Number of 4Xn 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A303199