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680013276 = 22356667773
BaseRepresentation
bin101000100010000…
…010110111011100
31202101120020211220
4220202002313130
52343040411101
6151251013340
722565005665
oct5042026734
91671506756
10680013276
11319939048
1216b89a250
13aab62027
146645436c
153ea75636
hex28882ddc

680013276 has 12 divisors (see below), whose sum is σ = 1586697672. Its totient is φ = 226671088.

The previous prime is 680013251. The next prime is 680013281. The reversal of 680013276 is 672310086.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28333875 + ... + 28333898.

It is an arithmetic number, because the mean of its divisors is an integer number (132224806).

Almost surely, 2680013276 is an apocalyptic number.

It is an amenable number.

680013276 is an abundant number, since it is smaller than the sum of its proper divisors (906684396).

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

680013276 is a wasteful number, since it uses less digits than its factorization.

680013276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56667780 (or 56667778 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 680013276 is about 26077.0641752479. The cubic root of 680013276 is about 879.3716571700.

The spelling of 680013276 in words is "six hundred eighty million, thirteen thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 12 56667773 113335546 170003319 226671092 340006638 680013276