Properties of the Number 40520

Forty Thousand Five Hundred Twenty

Basics

Value: 40519 → 40520 → 40521

Parity: even

Prime: No

Previous Prime: 40519

Next Prime: 40529

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 5 × 1013

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 1013, 2026

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001111001001000

Octal: 117110

Duodecimal: 1B548

Hexadecimal: 9e48

Square: 1641870400

Square Root: 201.2958022413781

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 compositions of n into a sum of odd primes. A2124

Number of partitions of n such that the number of parts is divisible by the smallest part. A168657

a(n) is the smallest position in the subtract-a-factorial game for which the value of the Sprague-Grundy function (or nim-value) is n. A355556

Square array A(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of ∏_j=0..k (1 + j·x)/(1 - j·x). A383900

a(n) = [xⁿ] ∏_k=0..n-1 (1 + k·x)/(1 - k·x). A383767

Expansion of ∏_k=0..4 (1 + k·x)/(1 - k·x). A383911

a(n) = -a(n-1) + 7·a(n-2) + 3·a(n-3) with a(0) = a(1) = 0, a(2) = 1. A137232

Table, read by rows, of the number of quivers of affine type A_n-1 according to the parameter k (n >= 2, 1 <= k <= [n/2]). A189942

Coordination sequence for root lattice B₁₁. A22153

Continued fraction for sqrt(544). A40520