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680030304 = 2539537433
BaseRepresentation
bin101000100010000…
…111000001100000
31202101121010012120
4220202013001200
52343041432204
6151251224240
722565106432
oct5042070140
91671533176
10680030304
1131994a918
1216b8a8080
13aab699c5
146645a652
153ea7a6d9
hex28887060

680030304 has 48 divisors (see below), whose sum is σ = 1787193072. Its totient is φ = 226408448.

The previous prime is 680030297. The next prime is 680030321. The reversal of 680030304 is 403030086.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 87772 + ... + 95204.

It is an arithmetic number, because the mean of its divisors is an integer number (37233189).

Almost surely, 2680030304 is an apocalyptic number.

It is an amenable number.

680030304 is an abundant number, since it is smaller than the sum of its proper divisors (1107162768).

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

680030304 is a wasteful number, since it uses less digits than its factorization.

680030304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8399 (or 8391 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 680030304 is about 26077.3906670127. The cubic root of 680030304 is about 879.3789971323.

The spelling of 680030304 in words is "six hundred eighty million, thirty thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 953 1906 2859 3812 5718 7433 7624 11436 14866 15248 22299 22872 29732 30496 44598 45744 59464 89196 91488 118928 178392 237856 356784 713568 7083649 14167298 21250947 28334596 42501894 56669192 85003788 113338384 170007576 226676768 340015152 680030304