Properties of the Number 38621

Thirty-Eight Thousand Six Hundred Twenty-One

Basics

Value: 38620 → 38621 → 38622

Parity: odd

Prime: No

Previous Prime: 38611

Next Prime: 38629

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 11 × 3511

Divisors: 1, 11, 3511, 38621

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001011011011101

Octal: 113335

Duodecimal: 1A425

Hexadecimal: 96dd

Square: 1491581641

Square Root: 196.5222633698279

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

G.f.: ∏_k>=1 (1+x^k²) / (1-x^k). A280204

Numbers k such that 2^k mod k = 2^k mod k². A68535

Positive integers of the form (30·m²+1)/11. A179339

Numbers k that are not powers of 2 such that 2^k mod k = 2^k mod k²; or A068535 with powers of 2 excluded. A125773

Numbers m such that m² divides 2^k - 1 for some k, 0 < k <= m. A246503

Number of ways to partition digits 0-9 into signed terms in decreasing absolute value order with sum n. A389952

Number of (n+1)X(2+1) 0..1 arrays with every 2X2 subblock sum nondecreasing horizontally, vertically and antidiagonally ne-to-sw. A253320

a(n) = (3!)³ * [z³] hypergeom([], [1,1], z)ⁿ. A287702

Numbers whose base-14 representation has exactly 5 runs. A43666

Number of fixed site animals with n nodes on the nodes of the prismatic pentagonal tiling. A378344