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12827109 = 319225037
BaseRepresentation
bin110000111011…
…100111100101
3220010200111010
4300323213211
511240431414
61134532433
7214012551
oct60734745
926120433
1012827109
117271219
124367119
132871609
1419bc861
1511d5959
hexc3b9e5

12827109 has 8 divisors (see below), whose sum is σ = 18003040. Its totient is φ = 8101296.

The previous prime is 12827107. The next prime is 12827159. The reversal of 12827109 is 90172821.

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

It is not a de Polignac number, because 12827109 - 21 = 12827107 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 (12827107) 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, 112462 + ... + 112575.

It is an arithmetic number, because the mean of its divisors is an integer number (2250380).

Almost surely, 212827109 is an apocalyptic number.

12827109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12827109 is a deficient number, since it is larger than the sum of its proper divisors (5175931).

12827109 is a wasteful number, since it uses less digits than its factorization.

12827109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225059.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 12827109 is about 3581.4953580872. The cubic root of 12827109 is about 234.0864426047.

The spelling of 12827109 in words is "twelve million, eight hundred twenty-seven thousand, one hundred nine".

Divisors: 1 3 19 57 225037 675111 4275703 12827109