Properties of the Number -181141

One Hundred Eighty-One Thousand One Hundred Forty-One

Basics

Value: -181142 → -181141 → -181140

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 181141

Divisors: 1, 181141

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -101100001110010101

Octal: -541625

Duodecimal: -889B1

Hexadecimal: -2c395

Square: 32812061881

Square Root: 425.60662588827256

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

Smallest weak prime in base n. A186995

Primes having only {1, 4, 8} as digits. A260270

a(n) = 3·a(n-1) - 3·a(n-2) + 2·a(n-3) - 2·a(n-4) + a(n-5) for n >= 10, a(0) = 2, a(1) = 4, a(2) = 7, a(3) = 12, a(4) = 20, a(5) = 32, a(6) = 50, a(7) = 77, a(8) = 116, a(9) = 174. A289115

a(n) is the smallest prime that becomes composite if any single digit of its base-n expansion is changed to a different digit (but not to zero). A323745

Smallest weak prime in base 2n+1. A371475

a(n) is the smallest prime that becomes composite if any single digit of its base-(2n+1) expansion is changed to a different digit (but not to zero). A371509