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389768026 = 2571341303
BaseRepresentation
bin10111001110110…
…110001101011010
31000011102021012211
4113032312031122
51244240034101
6102402025334
712441654634
oct2716661532
91004367184
10389768026
1119001753a
12aa64824a
136299b28b
1439a9da54
1524341c51
hex173b635a

389768026 has 8 divisors (see below), whose sum is σ = 585677664. Its totient is φ = 194542140.

The previous prime is 389768009. The next prime is 389768047. The reversal of 389768026 is 620867983.

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

It is a super-2 number, since 2×3897680262 = 303838228183873352, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 169510 + ... + 171793.

It is an arithmetic number, because the mean of its divisors is an integer number (73209708).

Almost surely, 2389768026 is an apocalyptic number.

389768026 is a deficient number, since it is larger than the sum of its proper divisors (195909638).

389768026 is a wasteful number, since it uses less digits than its factorization.

389768026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341876.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 389768026 is about 19742.5435544663. The cubic root of 389768026 is about 730.4694709539.

The spelling of 389768026 in words is "three hundred eighty-nine million, seven hundred sixty-eight thousand, twenty-six".

Divisors: 1 2 571 1142 341303 682606 194884013 389768026