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13728398222 = 2711671330529
BaseRepresentation
bin11001100100100011…
…01011101110001110
31022102202101212222102
430302101223232032
5211103432220342
610150131115102
7664126313420
oct146221535616
938382355872
1013728398222
115905360860
1227b1742a92
1313aa274c76
149433b6810
15555383832
hex33246bb8e

13728398222 has 32 divisors (see below), whose sum is σ = 26057099520. Its totient is φ = 5268890880.

The previous prime is 13728398197. The next prime is 13728398227. The reversal of 13728398222 is 22289382731.

It is a happy number.

It is a super-2 number, since 2×137283982222 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13728398227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654947 + ... + 675582.

It is an arithmetic number, because the mean of its divisors is an integer number (814284360).

Almost surely, 213728398222 is an apocalyptic number.

13728398222 is a deficient number, since it is larger than the sum of its proper divisors (12328701298).

13728398222 is a wasteful number, since it uses less digits than its factorization.

13728398222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330616.

The product of its digits is 580608, while the sum is 47.

The spelling of 13728398222 in words is "thirteen billion, seven hundred twenty-eight million, three hundred ninety-eight thousand, two hundred twenty-two".

Divisors: 1 2 7 11 14 22 67 77 134 154 469 737 938 1474 5159 10318 1330529 2661058 9313703 14635819 18627406 29271638 89145443 102450733 178290886 204901466 624018101 980599873 1248036202 1961199746 6864199111 13728398222