Properties of the Number -191271

One Hundred Ninety-One Thousand Two Hundred Seventy-One

Basics

Value: -191272 → -191271 → -191270

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 103 × 619

Divisors: 1, 3, 103, 309, 619, 1857, 63757, 191271

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101110101100100111

Octal: -565447

Duodecimal: -92833

Hexadecimal: -2eb27

Square: 36584595441

Square Root: 437.3454012562611

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) = p(n)*(p(n)-1)/2 where p(n) = upper member of n-th pair of twin primes. A82669

Triangular numbers that are repdigits with length > 2 in some base. A274084

Triangular numbers T such that T+10 is the next prime after T. A129540