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12701285 = 511512207
BaseRepresentation
bin110000011100…
…111001100101
3212220021212222
4300130321211
511222420120
61132122125
7212646662
oct60347145
925807788
1012701285
117195733
124306345
13282926c
141988a69
1511ad525
hexc1ce65

12701285 has 8 divisors (see below), whose sum is σ = 15261696. Its totient is φ = 10147600.

The previous prime is 12701263. The next prime is 12701287. The reversal of 12701285 is 58210721.

12701285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12701285 - 212 = 12697189 is a prime.

It is a super-2 number, since 2×127012852 = 322645281302450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12701287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4652 + ... + 6858.

It is an arithmetic number, because the mean of its divisors is an integer number (1907712).

Almost surely, 212701285 is an apocalyptic number.

It is an amenable number.

12701285 is a deficient number, since it is larger than the sum of its proper divisors (2560411).

12701285 is a wasteful number, since it uses less digits than its factorization.

12701285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 12701285 is about 3563.8862215284. The cubic root of 12701285 is about 233.3185240034.

The spelling of 12701285 in words is "twelve million, seven hundred one thousand, two hundred eighty-five".

Divisors: 1 5 1151 2207 5755 11035 2540257 12701285