Properties of the Number -18992

Eighteen Thousand Nine Hundred Ninety-Two

Basics

Value: -18993 → -18992 → -18991

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 ⁴ × 1187

Divisors: 1, 2, 4, 8, 16, 1187, 2374, 4748, 9496, 18992

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100101000110000

Octal: -45060

Duodecimal: -ABA8

Hexadecimal: -4a30

Square: 360696064

Square Root: 137.81146541561773

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 integer partitions of n that can be partitioned into two or more blocks with equal sums. A321452

Numbers k such that the k-th composition in standard order is an alternating permutation of {1..k} for some k. A349051

Sum of the squarefree parts of the partitions of n into 7 parts. A309482

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the minimum plus the maximum unequal to the lower median plus the upper median in every 2X2 subblock. A235932

Numbers k such that k² - 1 is a palindrome. A70253

Expansion of e.g.f. (1/x) * Series_Reversion( x * (exp(-2·x) - x) ). A379661

Number of weakly regular simple graphs on n nodes. A76434

Number of permutations p of {1,...,n} satisfying p(1)=1 and, if n>1, |p(i)-p((i mod n)+1)| is in {2,3} for i from 1 to n. A174469

Expansion of g.f. 1/ (1-x¹*(1-x^m+1)/ (1-x²*(1-x^m+2)/ (1- ... ))) for m=10. A185649

Number of partitions of n with difference -8 between the number of odd parts and the number of even parts, both counted without multiplicity. A242684