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30666284 = 2211696961
BaseRepresentation
bin111010011111…
…0111000101100
32010201000020022
41310332320230
530322310114
63013141312
7521442035
oct164767054
963630208
1030666284
1116346040
12a32a838
13647933c
144103a8c
152a5b48e
hex1d3ee2c

30666284 has 12 divisors (see below), whose sum is σ = 58544808. Its totient is φ = 13939200.

The previous prime is 30666257. The next prime is 30666313. The reversal of 30666284 is 48266603.

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, 348437 + ... + 348524.

It is an arithmetic number, because the mean of its divisors is an integer number (4878734).

Almost surely, 230666284 is an apocalyptic number.

It is an amenable number.

30666284 is a deficient number, since it is larger than the sum of its proper divisors (27878524).

30666284 is a wasteful number, since it uses less digits than its factorization.

30666284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696976 (or 696974 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 30666284 is about 5537.7146910978. The cubic root of 30666284 is about 313.0067604960.

The spelling of 30666284 in words is "thirty million, six hundred sixty-six thousand, two hundred eighty-four".

Divisors: 1 2 4 11 22 44 696961 1393922 2787844 7666571 15333142 30666284