Properties of the Number -2141

One Hundred Forty-One

Basics

Value: -2142 → -2141 → -2140

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2141

Divisors: 1, 2141

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -100001011101

Octal: -4135

Duodecimal: -12A5

Hexadecimal: -85d

Square: 4583881

Square Root: 46.2709412050371

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

Values of n such that L(11) and N(11) are both prime, where L(k) = (n²+n+1)*2^2·k + (2·n+1)*2^k + 1, N(k) = (n²+n+1)*2^k + n. A227449

Primes of the form 2x² + 2xy + 17y². A139827

Positive numbers for which the sum of digits equals the product of digits. A34710

Primes p such that continued fraction of (1 + sqrt(p))/2 has period 15: primes in A146338. A146360

Honaker primes: primes P(k) such that sum of digits of P(k) equals sum of digits of k. A33548

Primes congruent to 2 mod 31. A142006

Primes with first digit 2. A45708

Balanced primes of order two. A82077

Number of increasing arithmetic progressions in {1,2,3,...,n}, including trivial arithmetic progressions of lengths 1 and 2. A51336

Number of primes < prime(n)². A879