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390839214 = 231737103561
BaseRepresentation
bin10111010010111…
…011101110101110
31000020102200121110
4113102323232232
51300023323324
6102441012450
712454035633
oct2722735656
91006380543
10390839214
11190689317
12aaa84126
1362c84a0c
1439c9c18a
15244a4329
hex174bbbae

390839214 has 32 divisors (see below), whose sum is σ = 850036896. Its totient is φ = 119301120.

The previous prime is 390839203. The next prime is 390839233. The reversal of 390839214 is 412938093.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48007 + ... + 55554.

It is an arithmetic number, because the mean of its divisors is an integer number (26563653).

Almost surely, 2390839214 is an apocalyptic number.

390839214 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

390839214 is an abundant number, since it is smaller than the sum of its proper divisors (459197682).

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

390839214 is a wasteful number, since it uses less digits than its factorization.

390839214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103620.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 390839214 is about 19769.6538664692. The cubic root of 390839214 is about 731.1380347822.

The spelling of 390839214 in words is "three hundred ninety million, eight hundred thirty-nine thousand, two hundred fourteen".

Divisors: 1 2 3 6 17 34 37 51 74 102 111 222 629 1258 1887 3774 103561 207122 310683 621366 1760537 3521074 3831757 5281611 7663514 10563222 11495271 22990542 65139869 130279738 195419607 390839214