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13078945571 = 71184210501
BaseRepresentation
bin11000010111001000…
…01101111100100011
31020202111100021102112
430023210031330203
5203241202224241
610001451105535
7642052126436
oct141344157443
936674307375
1013078945571
1156017a642a
1226501422ab
131305853163
148c103981d
155183481eb
hex30b90df23

13078945571 has 4 divisors (see below), whose sum is σ = 13263156144. Its totient is φ = 12894735000.

The previous prime is 13078945543. The next prime is 13078945613. The reversal of 13078945571 is 17554987031.

It is a happy number.

13078945571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13078945571 - 214 = 13078929187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13078945541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92105180 + ... + 92105321.

It is an arithmetic number, because the mean of its divisors is an integer number (3315789036).

Almost surely, 213078945571 is an apocalyptic number.

13078945571 is a deficient number, since it is larger than the sum of its proper divisors (184210573).

13078945571 is an equidigital number, since it uses as much as digits as its factorization.

13078945571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184210572.

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 13078945571 in words is "thirteen billion, seventy-eight million, nine hundred forty-five thousand, five hundred seventy-one".

Divisors: 1 71 184210501 13078945571