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12057007 = 71169817
BaseRepresentation
bin101101111111…
…100110101111
3211200120002211
4231333212233
511041311012
61110231251
7204324424
oct55774657
924616084
1012057007
116895676
124055527
132661c31
14185bd4b
1510d26a7
hexb7f9af

12057007 has 4 divisors (see below), whose sum is σ = 12226896. Its totient is φ = 11887120.

The previous prime is 12056981. The next prime is 12057013. The reversal of 12057007 is 70075021.

12057007 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12057007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12057107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84838 + ... + 84979.

It is an arithmetic number, because the mean of its divisors is an integer number (3056724).

Almost surely, 212057007 is an apocalyptic number.

12057007 is a deficient number, since it is larger than the sum of its proper divisors (169889).

12057007 is an equidigital number, since it uses as much as digits as its factorization.

12057007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169888.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 12057007 is about 3472.3201177311. The cubic root of 12057007 is about 229.3048132932.

The spelling of 12057007 in words is "twelve million, fifty-seven thousand, seven".

Divisors: 1 71 169817 12057007