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13078938 = 232179823
BaseRepresentation
bin110001111001…
…000110011010
3220121110221010
4301321012122
511322011223
61144154350
7216112005
oct61710632
926543833
1013078938
117423444
1244689b6
13292c122
141a4653c
151235393
hexc7919a

13078938 has 8 divisors (see below), whose sum is σ = 26157888. Its totient is φ = 4359644.

The previous prime is 13078907. The next prime is 13078999. The reversal of 13078938 is 83987031.

13078938 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.

13078938 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 13078896 and 13078905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1089906 + ... + 1089917.

It is an arithmetic number, because the mean of its divisors is an integer number (3269736).

Almost surely, 213078938 is an apocalyptic number.

13078938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13078938 is a wasteful number, since it uses less digits than its factorization.

13078938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179828.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 13078938 is about 3616.4814391892. The cubic root of 13078938 is about 235.6084309165.

The spelling of 13078938 in words is "thirteen million, seventy-eight thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 2179823 4359646 6539469 13078938