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13193917025 = 52527756681
BaseRepresentation
bin11000100100110101…
…10011001001100001
31021001111200102121112
430102122303021201
5204010120321100
610021115233105
7644646305252
oct142232631141
937044612545
1013193917025
115660693163
122682748795
1313236092c3
148d2406b29
155234a8b35
hex3126b3261

13193917025 has 6 divisors (see below), whose sum is σ = 16360457142. Its totient is φ = 10555133600.

The previous prime is 13193917013. The next prime is 13193917027. The reversal of 13193917025 is 52071939131.

It can be written as a sum of positive squares in 3 ways, for example, as 1220524096 + 11973392929 = 34936^2 + 109423^2 .

It is not a de Polignac number, because 13193917025 - 214 = 13193900641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13193917027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 263878316 + ... + 263878365.

It is an arithmetic number, because the mean of its divisors is an integer number (2726742857).

Almost surely, 213193917025 is an apocalyptic number.

It is an amenable number.

13193917025 is a deficient number, since it is larger than the sum of its proper divisors (3166540117).

13193917025 is an equidigital number, since it uses as much as digits as its factorization.

13193917025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527756691 (or 527756686 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 41.

The spelling of 13193917025 in words is "thirteen billion, one hundred ninety-three million, nine hundred seventeen thousand, twenty-five".

Divisors: 1 5 25 527756681 2638783405 13193917025