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680330148 = 22356694179
BaseRepresentation
bin101000100011010…
…000001110100100
31202102011100111220
4220203100032210
52343131031043
6151301500340
722600465551
oct5043201644
91672140456
10680330148
1131a035123
1216ba116b0
13aac43324
14664d7a28
153ead9483
hex288d03a4

680330148 has 12 divisors (see below), whose sum is σ = 1587437040. Its totient is φ = 226776712.

The previous prime is 680330117. The next prime is 680330159. The reversal of 680330148 is 841033086.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×6803301482 = 925698220555403808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28347078 + ... + 28347101.

It is an arithmetic number, because the mean of its divisors is an integer number (132286420).

Almost surely, 2680330148 is an apocalyptic number.

It is an amenable number.

680330148 is an abundant number, since it is smaller than the sum of its proper divisors (907106892).

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

680330148 is a wasteful number, since it uses less digits than its factorization.

680330148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56694186 (or 56694184 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 680330148 is about 26083.1391515669. The cubic root of 680330148 is about 879.5082255750.

The spelling of 680330148 in words is "six hundred eighty million, three hundred thirty thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 56694179 113388358 170082537 226776716 340165074 680330148