Properties of the Number -1627

Six Hundred Twenty-Seven

Basics

Value: -1628 → -1627 → -1626

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 1627

Divisors: 1, 1627

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11001011011

Octal: -3133

Duodecimal: -B37

Hexadecimal: -65b

Square: 2647129

Square Root: 40.33608806019741

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

Numerators of the partial alternating sums of the reciprocals of the alternating sum of divisors function (A206369). A379621

Numerator of constant term in polynomial arising from numerical integration formula. A2669

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 425", based on the 5-celled von Neumann neighborhood. A272092

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 443", based on the 5-celled von Neumann neighborhood. A272228

Primes p such that 2p-1 is also prime. A5382

Numbers k such that (3^k - 1)/2 is prime. A28491

Primes p such that the decimal expansion of its base-9 conversion is also prime. A65727

Primes whose decimal representation is a valid number in base 8 and interpreted as such is again a prime. A235394

Numerator of the n-th alternating harmonic number, ∑_k=1..n (-1)^k+1/k. A58313

Primes that become a different prime under the mapping 0 <=> 2. A180517