Properties of the Number 1270

One Thousand Two Hundred Seventy

Basics

Value: 1269 → 1270 → 1271

Parity: even

Prime: No

Previous Prime: 1259

Next Prime: 1277

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

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

Number of times prime(n) occurs as the least prime factor among numbers 1 .. prime(n)³: a(n) = A078898(A030078(n)). A250474

Number of integer partitions of n such that more than one set can be obtained by choosing a different divisor of each part. A370803

Numbers k such that 6·k+1, 12·k+1 and 18·k+1 are all primes. A46025

30-gonal numbers: a(n) = n*(14·n-13). A254474