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388811082 = 23115891077
BaseRepresentation
bin10111001011001…
…100100101001010
31000002121122112110
4113023030211022
51244013423312
6102325323150
712430561002
oct2713144512
91002548473
10388811082
1118a523580
12aa2664b6
136272483a
14398d1002
152420343c
hex172cc94a

388811082 has 16 divisors (see below), whose sum is σ = 848315232. Its totient is φ = 117821520.

The previous prime is 388811009. The next prime is 388811089. The reversal of 388811082 is 280118883.

It is a self number, because there is not a number n which added to its sum of digits gives 388811082.

It is not an unprimeable number, because it can be changed into a prime (388811089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2945473 + ... + 2945604.

It is an arithmetic number, because the mean of its divisors is an integer number (53019702).

Almost surely, 2388811082 is an apocalyptic number.

388811082 is an abundant number, since it is smaller than the sum of its proper divisors (459504150).

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

388811082 is a wasteful number, since it uses less digits than its factorization.

388811082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5891093.

The product of its (nonzero) digits is 24576, while the sum is 39.

The square root of 388811082 is about 19718.2930802846. The cubic root of 388811082 is about 729.8711738641.

The spelling of 388811082 in words is "three hundred eighty-eight million, eight hundred eleven thousand, eighty-two".

Divisors: 1 2 3 6 11 22 33 66 5891077 11782154 17673231 35346462 64801847 129603694 194405541 388811082