Base | Representation |
---|---|
bin | 11000100100110101… |
… | …10010101110000101 |
3 | 1021001111200100012111 |
4 | 30102122302232011 |
5 | 204010120242034 |
6 | 10021115221021 |
7 | 644646300163 |
oct | 142232625605 |
9 | 37044610174 |
10 | 13193915269 |
11 | 5660691907 |
12 | 2682747771 |
13 | 1323608572 |
14 | 8d2406233 |
15 | 5234a8364 |
hex | 3126b2b85 |
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".
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