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683068820 = 22572697009
BaseRepresentation
bin101000101101101…
…100110110010100
31202121022111021012
4220231230312110
52344331200240
6151440311352
722632663200
oct5055546624
91677274235
10683068820
11320635795
12170912558
13ab691a45
1466a0bb00
153ee7ab65
hex28b6cd94

683068820 has 36 divisors (see below), whose sum is σ = 1668641940. Its totient is φ = 234194688.

The previous prime is 683068781. The next prime is 683068831. The reversal of 683068820 is 28860386.

683068820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 454030864 + 229037956 = 21308^2 + 15134^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347525 + ... + 349484.

It is an arithmetic number, because the mean of its divisors is an integer number (46351165).

Almost surely, 2683068820 is an apocalyptic number.

It is an amenable number.

683068820 is an abundant number, since it is smaller than the sum of its proper divisors (985573120).

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

683068820 is a wasteful number, since it uses less digits than its factorization.

683068820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697032 (or 697023 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 683068820 is about 26135.5853196365. The cubic root of 683068820 is about 880.6868002764.

The spelling of 683068820 in words is "six hundred eighty-three million, sixty-eight thousand, eight hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 697009 1394018 2788036 3485045 4879063 6970090 9758126 13940180 19516252 24395315 34153441 48790630 68306882 97581260 136613764 170767205 341534410 683068820