Properties of the Number -18800

Eighteen Thousand Eight Hundred

Basics

Value: -18801 → -18800 → -18799

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ⁴ × 5 ² × 47

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 25, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -100100101110000

Octal: -44560

Duodecimal: -AA68

Hexadecimal: -4970

Square: 353440000

Square Root: 137.11309200802089

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

Expansion of e.g.f. arcsinh(log(x+1) - tanh(x)). A13288

Expansion of e.g.f.: sin(log(x+1) - tanh(x)). A13282

Number of integer partitions of n of odd rank. A340692

Growth series for group with presentation < S, T : S⁴ = T⁴ = (S·T)⁴ = 1 >. A298802

Schoenheim bound L₁(n,5,4). A36832

Number of rich binary words of length n. A216264

First of triples of consecutive happy numbers, i.e., the first of three consecutive integers each of which is a happy number (A007770). A72494

Cascadence of (1+2x)²; a triangle, read by rows of 2n+1 terms, that retains its original form upon convolving each row with [1,4,4] and then letting excess terms spill over from each row into the initial positions of the next row such that only 2n+1 terms remain in row n for n>=0. A120914

Triangular array related to tennis ball problem, read by rows. A79521

Difference between larger and smaller term of n-th ψ-amicable pair, sorted by the smaller members from A323329. A387643