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389052168 = 23329717873
BaseRepresentation
bin10111001100000…
…111011100001000
31000010001220020120
4113030013130020
51244044132133
6102334423240
712432613611
oct2714073410
91003056216
10389052168
1118a67871a
12aa361b20
13627aa4ab
1439954c08
152424eab3
hex17307708

389052168 has 64 divisors (see below), whose sum is σ = 1020470400. Its totient is φ = 123432960.

The previous prime is 389052161. The next prime is 389052173. The reversal of 389052168 is 861250983.

It is not an unprimeable number, because it can be changed into a prime (389052161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45480 + ... + 53352.

It is an arithmetic number, because the mean of its divisors is an integer number (15944850).

Almost surely, 2389052168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389052168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510235200).

389052168 is an abundant number, since it is smaller than the sum of its proper divisors (631418232).

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

389052168 is a wasteful number, since it uses less digits than its factorization.

389052168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7982 (or 7978 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 389052168 is about 19724.4053902773. The cubic root of 389052168 is about 730.0219972104.

The spelling of 389052168 in words is "three hundred eighty-nine million, fifty-two thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 29 58 71 87 116 142 174 213 232 284 348 426 568 696 852 1704 2059 4118 6177 7873 8236 12354 15746 16472 23619 24708 31492 47238 49416 62984 94476 188952 228317 456634 558983 684951 913268 1117966 1369902 1676949 1826536 2235932 2739804 3353898 4471864 5479608 6707796 13415592 16210507 32421014 48631521 64842028 97263042 129684056 194526084 389052168