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Properties of the Number 38981

Thirty-Eight Thousand Nine Hundred Eighty-One

Basics

Value: 38980 → 38981 → 38982

Parity: odd

Prime: No

Previous Prime: 38977

Next Prime: 38993

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

2196 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
Primes p such that 93 is a square mod p. A38981