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679490082 = 232193195593
BaseRepresentation
bin101000100000000…
…011001000100010
31202100120200011100
4220200003020202
52342422140312
6151231455230
722560366435
oct5040031042
91670520140
10679490082
11319610a57
1216b687516
13aaa0ab4b
146635981c
153e9c05dc
hex28803222

679490082 has 24 divisors (see below), whose sum is σ = 1479864204. Its totient is φ = 225321984.

The previous prime is 679490069. The next prime is 679490083. The reversal of 679490082 is 280094976.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 672313041 + 7177041 = 25929^2 + 2679^2 .

It is not an unprimeable number, because it can be changed into a prime (679490083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94323 + ... + 101270.

Almost surely, 2679490082 is an apocalyptic number.

679490082 is an abundant number, since it is smaller than the sum of its proper divisors (800374122).

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

679490082 is a wasteful number, since it uses less digits than its factorization.

679490082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195794 (or 195791 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 679490082 is about 26067.0305558573. The cubic root of 679490082 is about 879.1460733295.

The spelling of 679490082 in words is "six hundred seventy-nine million, four hundred ninety thousand, eighty-two".

Divisors: 1 2 3 6 9 18 193 386 579 1158 1737 3474 195593 391186 586779 1173558 1760337 3520674 37749449 75498898 113248347 226496694 339745041 679490082