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679026369 = 3724619227
BaseRepresentation
bin101000011110010…
…001111011000001
31202022201010001210
4220132101323001
52342312320434
6151213520333
722553425500
oct5036217301
91668633053
10679026369
1131932461a
1216b4a30a9
13aa8a7a68
1466278837
153e92cee9
hex28791ec1

679026369 has 12 divisors (see below), whose sum is σ = 1053183984. Its totient is φ = 388014984.

The previous prime is 679026353. The next prime is 679026377. The reversal of 679026369 is 963620976.

It is not a de Polignac number, because 679026369 - 24 = 679026353 is a prime.

It is a super-2 number, since 2×6790263692 = 922153619594648322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (679026349) 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, 2309467 + ... + 2309760.

It is an arithmetic number, because the mean of its divisors is an integer number (87765332).

Almost surely, 2679026369 is an apocalyptic number.

It is an amenable number.

679026369 is a deficient number, since it is larger than the sum of its proper divisors (374157615).

679026369 is a wasteful number, since it uses less digits than its factorization.

679026369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4619244 (or 4619237 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 679026369 is about 26058.1344113503. The cubic root of 679026369 is about 878.9460388985.

The spelling of 679026369 in words is "six hundred seventy-nine million, twenty-six thousand, three hundred sixty-nine".

Divisors: 1 3 7 21 49 147 4619227 13857681 32334589 97003767 226342123 679026369