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680306525 = 5279401859
BaseRepresentation
bin101000100011001…
…010011101011101
31202102010011002222
4220203022131131
52343124302100
6151301155125
722600336643
oct5043123535
91672104088
10680306525
1131a0193a8
1216b9bbaa5
13aac35652
14664cd193
153ead2485
hex288ca75d

680306525 has 24 divisors (see below), whose sum is σ = 857385600. Its totient is φ = 535392000.

The previous prime is 680306513. The next prime is 680306551. The reversal of 680306525 is 525603086.

680306525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 680306525 - 24 = 680306509 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 791546 + ... + 792404.

It is an arithmetic number, because the mean of its divisors is an integer number (35724400).

Almost surely, 2680306525 is an apocalyptic number.

It is an amenable number.

680306525 is a deficient number, since it is larger than the sum of its proper divisors (177079075).

680306525 is a wasteful number, since it uses less digits than its factorization.

680306525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 680306525 is about 26082.6863072039. The cubic root of 680306525 is about 879.4980457805.

The spelling of 680306525 in words is "six hundred eighty million, three hundred six thousand, five hundred twenty-five".

Divisors: 1 5 25 79 395 401 859 1975 2005 4295 10025 21475 31679 67861 158395 339305 344459 791975 1696525 1722295 8611475 27212261 136061305 680306525