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12057115 = 571918131
BaseRepresentation
bin101101111111…
…101000011011
3211200120020211
4231333220123
511041311430
61110231551
7204324640
oct55775033
924616224
1012057115
116895764
1240555b7
132661cb5
14185bdc7
1510d272a
hexb7fa1b

12057115 has 16 divisors (see below), whose sum is σ = 17406720. Its totient is φ = 7832160.

The previous prime is 12057113. The next prime is 12057121. The reversal of 12057115 is 51175021.

12057115 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12057115 - 21 = 12057113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12057113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8401 + ... + 9730.

It is an arithmetic number, because the mean of its divisors is an integer number (1087920).

Almost surely, 212057115 is an apocalyptic number.

12057115 is a deficient number, since it is larger than the sum of its proper divisors (5349605).

12057115 is a wasteful number, since it uses less digits than its factorization.

12057115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18162.

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 12057115 is about 3472.3356692578. The cubic root of 12057115 is about 229.3054979530.

The spelling of 12057115 in words is "twelve million, fifty-seven thousand, one hundred fifteen".

Divisors: 1 5 7 19 35 95 133 665 18131 90655 126917 344489 634585 1722445 2411423 12057115