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389073814 = 21423136709
BaseRepresentation
bin10111001100001…
…100101110010110
31000010002222221021
4113030030232112
51244100330224
6102335111354
712433033663
oct2714145626
91003088837
10389073814
1118a692a08
12aa37255a
13627b72bc
143995ca6a
15242561e4
hex1730cb96

389073814 has 8 divisors (see below), whose sum is σ = 584025120. Its totient is φ = 194398776.

The previous prime is 389073809. The next prime is 389073827. The reversal of 389073814 is 418370983.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65509 + ... + 71200.

It is an arithmetic number, because the mean of its divisors is an integer number (73003140).

Almost surely, 2389073814 is an apocalyptic number.

389073814 is a deficient number, since it is larger than the sum of its proper divisors (194951306).

389073814 is a wasteful number, since it uses less digits than its factorization.

389073814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138134.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 389073814 is about 19724.9540937362. The cubic root of 389073814 is about 730.0355358944.

The spelling of 389073814 in words is "three hundred eighty-nine million, seventy-three thousand, eight hundred fourteen".

Divisors: 1 2 1423 2846 136709 273418 194536907 389073814