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13375145449 = 231007957697
BaseRepresentation
bin11000111010011100…
…01000010111101001
31021112010200210021101
430131032020113221
5204343014123244
610051111441401
7652306601101
oct143516102751
937463623241
1013375145449
115743a14816
122713386261
131352020363
1490c500201
155343560d4
hex31d3885e9

13375145449 has 8 divisors (see below), whose sum is σ = 13958300160. Its totient is φ = 12792126336.

The previous prime is 13375145431. The next prime is 13375145453. The reversal of 13375145449 is 94454157331.

13375145449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13375145449 - 211 = 13375143401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13375145399 and 13375145408.

It is not an unprimeable number, because it can be changed into a prime (13375145149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202969 + ... + 260665.

It is an arithmetic number, because the mean of its divisors is an integer number (1744787520).

Almost surely, 213375145449 is an apocalyptic number.

It is an amenable number.

13375145449 is a deficient number, since it is larger than the sum of its proper divisors (583154711).

13375145449 is a wasteful number, since it uses less digits than its factorization.

13375145449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67799.

The product of its digits is 907200, while the sum is 46.

The spelling of 13375145449 in words is "thirteen billion, three hundred seventy-five million, one hundred forty-five thousand, four hundred forty-nine".

Divisors: 1 23 10079 57697 231817 1327031 581528063 13375145449