Properties of the Number 40992

Forty Thousand Nine Hundred Ninety-Two

Basics

Value: 40991 → 40992 → 40993

Parity: even

Prime: No

Previous Prime: 40973

Next Prime: 40993

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ⁵ × 3 × 7 × 61

Divisors: 1, 2, 3, 4, 6, 7, 8, 12, 14, 16

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010000000100000

Octal: 120040

Duodecimal: 1B880

Hexadecimal: a020

Square: 1680344064

Square Root: 202.46481175750023

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

Matrix square of Stirling2 triangle A008277: 2-levels set partitions of [n] into k first-level subsets. A39810

Square of the Stirling2 matrix A048993. A130191

Number of edges among all distinct circles that can be constructed from n equally spaced points along a line using only a compass. A359254

Number of partitions of a 2n-set into colored blocks, such that exactly n colors are used and the colors are introduced in increasing order. A321712

Triangle of generalized Stirling numbers of 2nd kind. A46817

Call (m,n) a "(-1)SSU amicable pair" if (-1)σ(m)*σ(m) = k·UnitaryPhi(m)*(m+n) and (-1)σ(n)*σ(n) = k·UnitaryPhi(n)*(m+n) for some integer k. Sequence gives values of m, assuming n <= m. A123728

Numbers with no 1's in base 3, 4 & 10 expansions. A117564

Numbers m such that A049060(m)*σ(m) = k·uphi(m)*m for some integer k. A122483

Values of n associated with A123728. A123729

Numbers with no 1's in their base-3, base-4, and base-5 expansions. Intersection of A005823, A023709, and A023725. A117482