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1270285 = 52391063
BaseRepresentation
bin100110110001000001101
32101112111121
410312020031
5311122120
643120541
713540312
oct4661015
92345447
101270285
11798425
12513151
13356263
14250d09
151a15aa
hex13620d

1270285 has 8 divisors (see below), whose sum is σ = 1532160. Its totient is φ = 1011024.

The previous prime is 1270279. The next prime is 1270301. The reversal of 1270285 is 5820721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1270285 is a prime.

It is a super-2 number, since 2×12702852 = 3227247962450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664 + ... + 1726.

It is an arithmetic number, because the mean of its divisors is an integer number (191520).

21270285 is an apocalyptic number.

It is an amenable number.

1270285 is a deficient number, since it is larger than the sum of its proper divisors (261875).

1270285 is a wasteful number, since it uses less digits than its factorization.

1270285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1270285 is about 1127.0692081678. The cubic root of 1270285 is about 108.3013133508.

The spelling of 1270285 in words is "one million, two hundred seventy thousand, two hundred eighty-five".

Divisors: 1 5 239 1063 1195 5315 254057 1270285