Properties of the Number -1270

Two Hundred Seventy

Basics

Value: -1271 → -1270 → -1269

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 127

Divisors: 1, 2, 5, 10, 127, 254, 635, 1270

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011110110

Octal: -2366

Duodecimal: -89A

Hexadecimal: -4f6

Square: 1612900

Square Root: 35.63705936241092

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

Expansion of ∏_k>=1 ((1 - 4·x^k)/(1 + 4·x^k))^1/4. A303387

a(n) = Pell(n) * ∑_d∣n (-1)^n/d / Pell(d), where Pell(n) = A000129(n). A204059

Expansion of (1-x)/(1+x+2·x²-2·x³). A78048

Triangle read by rows, T[n,2i-1]=2T[n-1,i],T[n,2i]=2k-1-2T[n-1,i]. A138583

Numbers that are the sum of 5 positive 5th powers. A3350

Sum of composite numbers between successive primes. A54265

Numbers m such that the Bernoulli number B_m has denominator 66. A51230

Generalized 30-gonal (or triacontagonal) numbers: m*(14·m - 13) with m = 0, +1, -1, +2, -2, +3, -3, ... A316729

a(n) = (n² + 7·n + 2)/2. A52905

Numbers k whose largest divisor <= sqrt(k) equals 10. A162530