Properties of the Number -38981

Thirty-Eight Thousand Nine Hundred Eighty-One

Basics

Value: -38982 → -38981 → -38980

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 17 × 2293

Divisors: 1, 17, 2293, 38981

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -1001100001000101

Octal: -114105

Duodecimal: -1A685

Hexadecimal: -9845

Square: 1519518361

Square Root: 197.43606560099397

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

Numbers whose arithmetic derivative (A003415) is a primorial number (A002110) > 1. A327978

T(n,k)=Number of nXk 0..2 arrays with no element equal to a different number of vertical neighbors than horizontal neighbors, with new values 0..2 introduced in row major order. A240893

Numbers k such that A003415(k) == A276085(k) (mod 2310), where A003415 is the arithmetic derivative and A276085 is the primorial base log-function. A391864

Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 774", based on the 5-celled von Neumann neighborhood. A290238

a(n) = floor(Pt(n)/n!), where Pt(n) is product of first n positive triangular numbers (A000217). A233005

Number of n X 3 0..2 arrays with no element equal to a different number of vertical neighbors than horizontal neighbors, with new values 0..2 introduced in row major order. A240888

Number of nX7 0..2 arrays with no element equal to a different number of vertical neighbors than horizontal neighbors, with new values 0..2 introduced in row major order. A240892

a(n) is the least semiprime p·q such that p·q-i*(p+q) is prime for i from 1 to n but not n+1. A356825