Properties of the Number -221369

Two Hundred Twenty-One Thousand Three Hundred Sixty-Nine

Basics

Value: -221370 → -221369 → -221368

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 19 × 61 × 191

Divisors: 1, 19, 61, 191, 1159, 3629, 11651, 221369

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110110000010111001

Octal: -660271

Duodecimal: -A8135

Hexadecimal: -360b9

Square: 49004234161

Square Root: 470.4986716240546

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) = the smallest multiple of the n-th prime such that (a(n)-1) is divisible by both the (n-1)th prime and the (n+1)st prime. A143244

s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (Fibonacci numbers), t = A000201 (lower Wythoff sequence). A24464

a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Fibonacci numbers), t = A000201 (lower Wythoff sequence). A25084