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389808514 = 2288767511
BaseRepresentation
bin10111001111000…
…000000110000010
31000011111022202101
4113033000012002
51244242333024
6102402541014
712442213654
oct2717000602
91004438671
10389808514
111900449a7
12aa66776a
13629b3834
1439ab06d4
152434dc44
hex173c0182

389808514 has 8 divisors (see below), whose sum is σ = 584923968. Its totient is φ = 194833860.

The previous prime is 389808511. The next prime is 389808533. The reversal of 389808514 is 415808983.

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

It is not an unprimeable number, because it can be changed into a prime (389808511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27982 + ... + 39529.

It is an arithmetic number, because the mean of its divisors is an integer number (73115496).

Almost surely, 2389808514 is an apocalyptic number.

389808514 is a deficient number, since it is larger than the sum of its proper divisors (195115454).

389808514 is a wasteful number, since it uses less digits than its factorization.

389808514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70400.

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 389808514 is about 19743.5689276281. The cubic root of 389808514 is about 730.4947631123.

The spelling of 389808514 in words is "three hundred eighty-nine million, eight hundred eight thousand, five hundred fourteen".

Divisors: 1 2 2887 5774 67511 135022 194904257 389808514