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680387710 = 25431582297
BaseRepresentation
bin101000100011011…
…110010001111110
31202102021021110211
4220203132101332
52343134401320
6151303023034
722601125432
oct5043362176
91672237424
10680387710
1131a0743a2
1216ba3aa7a
13aac635a2
14665109c2
153eaeb55a
hex288de47e

680387710 has 16 divisors (see below), whose sum is σ = 1253180016. Its totient is φ = 265825728.

The previous prime is 680387707. The next prime is 680387723. The reversal of 680387710 is 17783086.

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, 790719 + ... + 791578.

It is an arithmetic number, because the mean of its divisors is an integer number (78323751).

Almost surely, 2680387710 is an apocalyptic number.

680387710 is a deficient number, since it is larger than the sum of its proper divisors (572792306).

680387710 is a wasteful number, since it uses less digits than its factorization.

680387710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582347.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 680387710 is about 26084.2425613626. The cubic root of 680387710 is about 879.5330296229.

The spelling of 680387710 in words is "six hundred eighty million, three hundred eighty-seven thousand, seven hundred ten".

Divisors: 1 2 5 10 43 86 215 430 1582297 3164594 7911485 15822970 68038771 136077542 340193855 680387710