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680072410 = 2568007241
BaseRepresentation
bin101000100010010…
…001010011011010
31202101200020222001
4220202101103122
52343044304120
6151252151214
722565343253
oct5042212332
91671606861
10680072410
11319979516
1216b90850a
13aab82c14
146646bb2a
153ea87e0a
hex288914da

680072410 has 8 divisors (see below), whose sum is σ = 1224130356. Its totient is φ = 272028960.

The previous prime is 680072401. The next prime is 680072411. The reversal of 680072410 is 14270086.

It can be written as a sum of positive squares in 2 ways, for example, as 610633521 + 69438889 = 24711^2 + 8333^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (680072411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34003611 + ... + 34003630.

Almost surely, 2680072410 is an apocalyptic number.

680072410 is a deficient number, since it is larger than the sum of its proper divisors (544057946).

680072410 is a wasteful number, since it uses less digits than its factorization.

680072410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68007248.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 680072410 is about 26078.1979822226. The cubic root of 680072410 is about 879.3971465038.

The spelling of 680072410 in words is "six hundred eighty million, seventy-two thousand, four hundred ten".

Divisors: 1 2 5 10 68007241 136014482 340036205 680072410