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30380815372 = 2242071180533
BaseRepresentation
bin11100010010110101…
…100111010000001100
32220102021212022212011
4130102311213100030
5444204442042442
621542354151004
72123602445515
oct342265472014
986367768764
1030380815372
11119801a6286
125a7a582464
132b3224a43b
141682c57a0c
15bcc29d117
hex712d6740c

30380815372 has 12 divisors (see below), whose sum is σ = 53167985136. Its totient is φ = 15189962480.

The previous prime is 30380815303. The next prime is 30380815411. The reversal of 30380815372 is 27351808303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78018 + ... + 258550.

It is an arithmetic number, because the mean of its divisors is an integer number (4430665428).

Almost surely, 230380815372 is an apocalyptic number.

It is an amenable number.

30380815372 is a deficient number, since it is larger than the sum of its proper divisors (22787169764).

30380815372 is a wasteful number, since it uses less digits than its factorization.

30380815372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222608 (or 222606 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 30380815372 in words is "thirty billion, three hundred eighty million, eight hundred fifteen thousand, three hundred seventy-two".

Divisors: 1 2 4 42071 84142 168284 180533 361066 722132 7595203843 15190407686 30380815372