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30207660788 = 22231731897943
BaseRepresentation
bin11100001000100001…
…000101001011110100
32212222020001011102102
4130020201011023310
5443331130121123
621513251001232
72116400610614
oct341041051364
985866034372
1030207660788
11118a1489718
125a30599218
132b054022c6
141667c62a44
15bbbe98028
hex7088452f4

30207660788 has 24 divisors (see below), whose sum is σ = 55480699008. Its totient is φ = 14363625056.

The previous prime is 30207660767. The next prime is 30207660817. The reversal of 30207660788 is 88706670203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933056 + ... + 964887.

It is an arithmetic number, because the mean of its divisors is an integer number (2311695792).

Almost surely, 230207660788 is an apocalyptic number.

It is an amenable number.

30207660788 is a deficient number, since it is larger than the sum of its proper divisors (25273038220).

30207660788 is a wasteful number, since it uses less digits than its factorization.

30207660788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898143 (or 1898141 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 30207660788 in words is "thirty billion, two hundred seven million, six hundred sixty thousand, seven hundred eighty-eight".

Divisors: 1 2 4 23 46 92 173 346 692 3979 7958 15916 1897943 3795886 7591772 43652689 87305378 174610756 328344139 656688278 1313376556 7551915197 15103830394 30207660788