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30115545044 = 22131075412571
BaseRepresentation
bin11100000011000001…
…101011111111010100
32212201210201012101012
4130003001223333110
5443134034420134
621500200351352
72114201623604
oct340301537724
985653635335
1030115545044
1111854492802
125a05775558
132abc2bc350
141659924c04
15bb3d4e6ce
hex70306bfd4

30115545044 has 24 divisors (see below), whose sum is σ = 57286662048. Its totient is φ = 13769578080.

The previous prime is 30115545041. The next prime is 30115545071. The reversal of 30115545044 is 44054551103.

It is a self number, because there is not a number n which added to its sum of digits gives 30115545044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30115545041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2700722 + ... + 2711849.

It is an arithmetic number, because the mean of its divisors is an integer number (2386944252).

Almost surely, 230115545044 is an apocalyptic number.

It is an amenable number.

30115545044 is a deficient number, since it is larger than the sum of its proper divisors (27171117004).

30115545044 is a wasteful number, since it uses less digits than its factorization.

30115545044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5412695 (or 5412693 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 30115545044 in words is "thirty billion, one hundred fifteen million, five hundred forty-five thousand, forty-four".

Divisors: 1 2 4 13 26 52 107 214 428 1391 2782 5564 5412571 10825142 21650284 70363423 140726846 281453692 579145097 1158290194 2316580388 7528886261 15057772522 30115545044