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13193915269 = 17477552327
BaseRepresentation
bin11000100100110101…
…10010101110000101
31021001111200100012111
430102122302232011
5204010120242034
610021115221021
7644646300163
oct142232625605
937044610174
1013193915269
115660691907
122682747771
131323608572
148d2406233
155234a8364
hex3126b2b85

13193915269 has 4 divisors (see below), whose sum is σ = 13201469344. Its totient is φ = 13186361196.

The previous prime is 13193915263. The next prime is 13193915309. The reversal of 13193915269 is 96251939131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13193915269 - 23 = 13193915261 is a prime.

It is a super-2 number, since 2×131939152692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13193915261) 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, 3774417 + ... + 3777910.

It is an arithmetic number, because the mean of its divisors is an integer number (3300367336).

Almost surely, 213193915269 is an apocalyptic number.

It is an amenable number.

13193915269 is a deficient number, since it is larger than the sum of its proper divisors (7554075).

13193915269 is an equidigital number, since it uses as much as digits as its factorization.

13193915269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7554074.

The product of its digits is 393660, while the sum is 49.

The spelling of 13193915269 in words is "thirteen billion, one hundred ninety-three million, nine hundred fifteen thousand, two hundred sixty-nine".

Divisors: 1 1747 7552327 13193915269