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12730107 = 313437591
BaseRepresentation
bin110000100011…
…111011111011
3212221202102110
4300203323323
511224330412
61132503403
7213130005
oct60437373
925852373
1012730107
117205355
12431ab63
132839410
141995375
1511b6d3c
hexc23efb

12730107 has 16 divisors (see below), whose sum is σ = 18706688. Its totient is φ = 7650720.

The previous prime is 12730097. The next prime is 12730121. The reversal of 12730107 is 70103721.

It is not a de Polignac number, because 12730107 - 27 = 12729979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12730007) 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, 2119 + ... + 5472.

It is an arithmetic number, because the mean of its divisors is an integer number (1169168).

Almost surely, 212730107 is an apocalyptic number.

12730107 is a deficient number, since it is larger than the sum of its proper divisors (5976581).

12730107 is a wasteful number, since it uses less digits than its factorization.

12730107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7650.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 12730107 is about 3567.9275497129. The cubic root of 12730107 is about 233.4948743042.

Adding to 12730107 its reverse (70103721), we get a palindrome (82833828).

The spelling of 12730107 in words is "twelve million, seven hundred thirty thousand, one hundred seven".

Divisors: 1 3 13 39 43 129 559 1677 7591 22773 98683 296049 326413 979239 4243369 12730107