Properties of the Number 21301

Twenty-One Thousand Three Hundred One

Basics

Value: 21300 → 21301 → 21302

Parity: odd

Prime: No

Previous Prime: 21283

Next Prime: 21313

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 7 × 17 × 179

Divisors: 1, 7, 17, 119, 179, 1253, 3043, 21301

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101001100110101

Octal: 51465

Duodecimal: 103B1

Hexadecimal: 5335

Square: 453732601

Square Root: 145.94862109660372

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

Multiples of 7 whose sum of digits is equal to 7. A63416

a(n) is the smallest j such that 1/1 + 1/4 + 1/7 + ... + 1/j exceeds n. A91463

Number of lattice points in the closed region bounded by the graphs of y = (5/6)*x², x = n, and y = 0, excluding points on the x-axis. A227347

Number of tilings of an n X 1 rectangle by tiles of dimension 1 X 1 and 2 X 1 such that every tile is next to a tile of different size. A245596

Integers arising in A133677. A133645

a(n) = n⁴/6 - 2·n³/3 - n²/6 + 5·n/3 + 1. A299198

Squares written in base 4. A1739

Decimal part of a(n)^1/3 starts with reversal of its integer part: first term of runs. A34309

Row sums of triangle in A139040. A238383

Numbers k such that the number of prime divisors of the k-th Catalan number (counted with multiplicity) divides k. A121612