Properties of the Number 74221

Seventy-Four Thousand Two Hundred Twenty-One

Basics

Value: 74220 → 74221 → 74222

Parity: odd

Prime: No

Previous Prime: 74219

Next Prime: 74231

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 × 23 × 461

Divisors: 1, 7, 23, 161, 461, 3227, 10603, 74221

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010000111101101

Octal: 220755

Duodecimal: 36B51

Hexadecimal: 121ed

Square: 5508756841

Square Root: 272.4353134232051

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

Square array T(n, k) = ∏_j=1..n ( ∑_i=0..j-1 ( (k+1)⁷ - ∑_m=1..5 (k+1)^m )ⁱ ) with T(n, 0) = n!, read by antidiagonals. A156888

Number of tilings of a 16 X n rectangle using 2n octominoes of shape I. A250665

G.f.: ∑_n>=0 (n+1)*(n+2)*(n+3)/3! * (x + xⁿ)ⁿ. A325999

Numbers k such that floor(k^e) is prime. A74221