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30664789288 = 2371793059137
BaseRepresentation
bin11100100011110000…
…111000110100101000
32221011002012200211121
4130203300320310220
51000300141224123
622030500505024
72133621260020
oct344360706450
987132180747
1030664789288
1112006524071
125b396ab174
132b79026843
1416ac858a80
15be719375d
hex723c38d28

30664789288 has 32 divisors (see below), whose sum is σ = 66077380800. Its totient is φ = 13068628992.

The previous prime is 30664789277. The next prime is 30664789327. The reversal of 30664789288 is 88298746603.

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, 1519545 + ... + 1539592.

It is an arithmetic number, because the mean of its divisors is an integer number (2064918150).

Almost surely, 230664789288 is an apocalyptic number.

It is an amenable number.

30664789288 is an abundant number, since it is smaller than the sum of its proper divisors (35412591512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30664789288 is a wasteful number, since it uses less digits than its factorization.

30664789288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059329 (or 3059325 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 30664789288 in words is "thirty billion, six hundred sixty-four million, seven hundred eighty-nine thousand, two hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 179 358 716 1253 1432 2506 5012 10024 3059137 6118274 12236548 21413959 24473096 42827918 85655836 171311672 547585523 1095171046 2190342092 3833098661 4380684184 7666197322 15332394644 30664789288