Properties of the Number 38221

Thirty-Eight Thousand Two Hundred Twenty-One

Basics

Value: 38220 → 38221 → 38222

Parity: odd

Prime: No

Previous Prime: 38219

Next Prime: 38231

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 37 × 1033

Divisors: 1, 37, 1033, 38221

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001010101001101

Octal: 112515

Duodecimal: 1A151

Hexadecimal: 954d

Square: 1460844841

Square Root: 195.5019181491578

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

a(n) = n⁴ - n² + 1. A60886

Expansion of e.g.f. exp(x / (1 - x²)²). A373620

Number n such that a2 - n³ is a triangular number (A000217), where a2 is the least square above n³. A233400

Number of partitions of n into two sorts of parts having exactly 7 parts of the second sort. A258477

Expansion of 1/((1-x)*(1-5·x)*(1-12·x)). A16239

Strong pseudoprimes to base 14. A20240

a(n) = n⁴ - 15·n + 15. A107253

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 115", based on the 5-celled von Neumann neighborhood. A270183

Centered heptagonal numbers which are semiprime. A381960

Triangle whose (i,j)-th entry is binomial(i,j)*3^i-j*3^j. A38221