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683206989 = 3271840353
BaseRepresentation
bin101000101110001…
…110100101001101
31202121120111210120
4220232032211031
52344400110424
6151443255153
722634110053
oct5056164515
91677514716
10683206989
1132071a583
1217097a4b9
13ab70c8ba
1466a461d3
153eea6a79
hex28b8e94d

683206989 has 8 divisors (see below), whose sum is σ = 914305152. Its totient is φ = 453790080.

The previous prime is 683206957. The next prime is 683207011. The reversal of 683206989 is 989602386.

683206989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 683206989 - 25 = 683206957 is a prime.

It is a super-2 number, since 2×6832069892 = 933543579636892242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683206889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419364 + ... + 420989.

It is an arithmetic number, because the mean of its divisors is an integer number (114288144).

Almost surely, 2683206989 is an apocalyptic number.

It is an amenable number.

683206989 is a deficient number, since it is larger than the sum of its proper divisors (231098163).

683206989 is a wasteful number, since it uses less digits than its factorization.

683206989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840627.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The square root of 683206989 is about 26138.2284977387. The cubic root of 683206989 is about 880.7461771197.

The spelling of 683206989 in words is "six hundred eighty-three million, two hundred six thousand, nine hundred eighty-nine".

Divisors: 1 3 271 813 840353 2521059 227735663 683206989