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12388103 = 713136133
BaseRepresentation
bin101111010000…
…011100000111
3212022101021122
4233100130013
511132404403
61121304155
7210203630
oct57203407
925271248
1012388103
116aa1402
12419505b
132749850
141906887
15114a838
hexbd0707

12388103 has 8 divisors (see below), whose sum is σ = 15247008. Its totient is φ = 9801504.

The previous prime is 12388073. The next prime is 12388147. The reversal of 12388103 is 30188321.

12388103 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 a cyclic number.

It is not a de Polignac number, because 12388103 - 28 = 12387847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12388153) 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, 67976 + ... + 68157.

It is an arithmetic number, because the mean of its divisors is an integer number (1905876).

Almost surely, 212388103 is an apocalyptic number.

12388103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12388103 is a deficient number, since it is larger than the sum of its proper divisors (2858905).

12388103 is a wasteful number, since it uses less digits than its factorization.

12388103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136153.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 12388103 is about 3519.6737064677. The cubic root of 12388103 is about 231.3848584708.

The spelling of 12388103 in words is "twelve million, three hundred eighty-eight thousand, one hundred three".

Divisors: 1 7 13 91 136133 952931 1769729 12388103