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13728880107 = 3623978797
BaseRepresentation
bin11001100100100111…
…00001010111101011
31022102210022101000000
430302103201113223
5211104043130412
610150145314043
7664133361345
oct146223412753
938383271000
1013728880107
11590565a908
1227b1935923
1313aa3b33c7
149434a0295
1555542b4dc
hex3324e15eb

13728880107 has 28 divisors (see below), whose sum is σ = 20670291360. Its totient is φ = 9114175728.

The previous prime is 13728880079. The next prime is 13728880133. The reversal of 13728880107 is 70108882731.

It is not a de Polignac number, because 13728880107 - 210 = 13728879083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13728880157) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 134833 + ... + 213629.

Almost surely, 213728880107 is an apocalyptic number.

13728880107 is a deficient number, since it is larger than the sum of its proper divisors (6941411253).

13728880107 is an frugal number, since it uses more digits than its factorization.

13728880107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79054 (or 79039 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The spelling of 13728880107 in words is "thirteen billion, seven hundred twenty-eight million, eight hundred eighty thousand, one hundred seven".

Divisors: 1 3 9 27 81 239 243 717 729 2151 6453 19359 58077 78797 174231 236391 709173 2127519 6382557 18832483 19147671 56497449 57443013 169492347 508477041 1525431123 4576293369 13728880107