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13687103 = 15787179
BaseRepresentation
bin110100001101…
…100100111111
3221202101011202
4310031210333
512000441403
61205210115
7224224043
oct64154477
927671152
1013687103
1177a9361
12470093b
132ab2ba1
141b64023
151305688
hexd0d93f

13687103 has 4 divisors (see below), whose sum is σ = 13774440. Its totient is φ = 13599768.

The previous prime is 13687097. The next prime is 13687111. The reversal of 13687103 is 30178631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13687103 - 214 = 13670719 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 (13687123) 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, 43433 + ... + 43746.

It is an arithmetic number, because the mean of its divisors is an integer number (3443610).

Almost surely, 213687103 is an apocalyptic number.

13687103 is a deficient number, since it is larger than the sum of its proper divisors (87337).

13687103 is an equidigital number, since it uses as much as digits as its factorization.

13687103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87336.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 13687103 is about 3699.6084928003. The cubic root of 13687103 is about 239.2051424028.

The spelling of 13687103 in words is "thirteen million, six hundred eighty-seven thousand, one hundred three".

Divisors: 1 157 87179 13687103