Properties of the Number 36640

Thirty-Six Thousand Six Hundred Forty

Basics

Value: 36639 → 36640 → 36641

Parity: even

Prime: No

Previous Prime: 36637

Next Prime: 36643

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ⁵ × 5 × 229

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1000111100100000

Octal: 107440

Duodecimal: 19254

Hexadecimal: 8f20

Square: 1342489600

Square Root: 191.41577782408638

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

T(n,k)=Number of ways to reciprocally link elements of an nXk array either to themselves or to exactly one horizontal or antidiagonal neighbor. A220562

Number of ways to reciprocally link elements of an n X 4 array either to themselves or to exactly one horizontal or antidiagonal neighbor. A220558

Number of ways to reciprocally link elements of an 5Xn array either to themselves or to exactly one horizontal or antidiagonal neighbor. A220566

Number of length 2+2 0..n arrays with some pair in every consecutive three terms totalling exactly n. A245871

Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k UHU configurations, where U=(0,1), H(1,0); (n>=2, k>=0). A273896

Number of set partitions of [n] such that the difference between each element and its index (in the partition) is a multiple of five. A274862

Numbers k such that both k and k+1 are abundant. A96399

Number of 5-ary rooted trees with n nodes and height exactly 9. A36640