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683580385 = 51931722699
BaseRepresentation
bin101000101111101…
…001101111100001
31202122021111000001
4220233221233201
52344444033020
6151455300001
722640223505
oct5057515741
91678244001
10683580385
11320955074
12170b1a601
13ab810847
1466b02305
154002c50a
hex28be9be1

683580385 has 16 divisors (see below), whose sum is σ = 866232000. Its totient is φ = 516424896.

The previous prime is 683580377. The next prime is 683580397. The reversal of 683580385 is 583085386.

It is a cyclic number.

It is not a de Polignac number, because 683580385 - 23 = 683580377 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18766 + ... + 41464.

It is an arithmetic number, because the mean of its divisors is an integer number (54139500).

Almost surely, 2683580385 is an apocalyptic number.

It is an amenable number.

683580385 is a deficient number, since it is larger than the sum of its proper divisors (182651615).

683580385 is a wasteful number, since it uses less digits than its factorization.

683580385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23040.

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 683580385 is about 26145.3702402548. The cubic root of 683580385 is about 880.9066005398.

The spelling of 683580385 in words is "six hundred eighty-three million, five hundred eighty thousand, three hundred eighty-five".

Divisors: 1 5 19 95 317 1585 6023 22699 30115 113495 431281 2156405 7195583 35977915 136716077 683580385