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15680412103 = 92647169249
BaseRepresentation
bin11101001101010000…
…00001100111000111
31111110210110110121211
432212220001213013
5224103141141403
611111541352251
71063401206116
oct164650014707
944423413554
1015680412103
116717202774
123057408687
13162b7ba775
14a8a73dc7d
1561b91806d
hex3a6a019c7

15680412103 has 4 divisors (see below), whose sum is σ = 15680674000. Its totient is φ = 15680150208.

The previous prime is 15680412089. The next prime is 15680412161. The reversal of 15680412103 is 30121408651.

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-15680412103 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 (15680422103) 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, 8023 + ... + 177271.

It is an arithmetic number, because the mean of its divisors is an integer number (3920168500).

Almost surely, 215680412103 is an apocalyptic number.

15680412103 is a deficient number, since it is larger than the sum of its proper divisors (261897).

15680412103 is an equidigital number, since it uses as much as digits as its factorization.

15680412103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261896.

The product of its (nonzero) digits is 5760, while the sum is 31.

The spelling of 15680412103 in words is "fifteen billion, six hundred eighty million, four hundred twelve thousand, one hundred three".

Divisors: 1 92647 169249 15680412103