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Properties of the Number 38980

Thirty-Eight Thousand Nine Hundred Eighty

Basics

Value: 38979 → 38980 → 38981

Parity: even

Prime: No

Previous Prime: 38977

Next Prime: 38993

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 2 × 5 × 1949

Divisors: 1, 2, 4, 5, 10, 20, 1949, 3898, 7796, 9745

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1001100001000100

Octal: 114104

Duodecimal: 1A684

Hexadecimal: 9844

Square: 1519440400

Square Root: 197.43353311937665

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 1-sided polyedges with n edges. A151537
Solution of the complementary equation a(n) = a(n-1) + a(n-3) + a(n-4) + b(n-3), where a(0) = 1, a(1) = 2, a(2) = 3, a(3) = 4, b(0) = 5, b(1) = 6, b(2) = 7, b(3) = 8, and (a(n)) and (b(n)) are increasing complementary sequences. A295755
"CFK" (necklace, size, unlabeled) transform of 2,1,1,1... A32140
Number of nondecreasing strings of numbers x(i=1..n) in -3..3 with sum x(i)3 equal to 0. A188271
Number of permutations avoiding the consecutive pattern 42351. A202224
Number of permutations avoiding the consecutive pattern 43521. A202225
Number of permutations avoiding the consecutive pattern 45123. A202231
The hyper-Wiener index of the tetrameric 1,3-adamantane TA(n) (see the Fath-Tabar et al. reference). A216107
Number of nX2 0..1 arrays with every element equal to 0, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero. A298569
A nonnegative integer n is included if the binary representation of n and the digit-reversal (with leading 0's) of the binary representation of n do not have any 1's in the same position. A140900