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30105719119 = 726110072171
BaseRepresentation
bin11100000010011100…
…001101000101001111
32212201010012222202001
4130002130031011033
5443124031002434
621455210013131
72114022250600
oct340234150517
985633188661
1030105719119
1111849991403
125a024171a7
132aba25baa8
1416584c7da7
15bb305d114
hex70270d14f

30105719119 has 12 divisors (see below), whose sum is σ = 35595055848. Its totient is φ = 25381868400.

The previous prime is 30105719087. The next prime is 30105719141. The reversal of 30105719119 is 91191750103.

It is not a de Polignac number, because 30105719119 - 25 = 30105719087 is a prime.

It is a super-2 number, since 2×301057191192 (a number of 22 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 (30105729119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5033097 + ... + 5039074.

It is an arithmetic number, because the mean of its divisors is an integer number (2966254654).

Almost surely, 230105719119 is an apocalyptic number.

30105719119 is a deficient number, since it is larger than the sum of its proper divisors (5489336729).

30105719119 is a wasteful number, since it uses less digits than its factorization.

30105719119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10072246 (or 10072239 counting only the distinct ones).

The product of its (nonzero) digits is 8505, while the sum is 37.

The spelling of 30105719119 in words is "thirty billion, one hundred five million, seven hundred nineteen thousand, one hundred nineteen".

Divisors: 1 7 49 61 427 2989 10072171 70505197 493536379 614402431 4300817017 30105719119