Base | Representation |
---|---|
bin | 10111001001011… |
… | …110101000110000 |
3 | 1000001202202210120 |
4 | 113021132220300 |
5 | 1243410021002 |
6 | 102311530240 |
7 | 12424004043 |
oct | 2711365060 |
9 | 1001682716 |
10 | 388360752 |
11 | 18a2461aa |
12 | aa089980 |
13 | 625c7880 |
14 | 39814c5a |
15 | 24164cbc |
hex | 1725ea30 |
388360752 has 80 divisors (see below), whose sum is σ = 1087951200. Its totient is φ = 118665216.
The previous prime is 388360711. The next prime is 388360771. The reversal of 388360752 is 257063883.
It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90888 + ... + 95064.
It is an arithmetic number, because the mean of its divisors is an integer number (13599390).
Almost surely, 2388360752 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 388360752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543975600).
388360752 is an abundant number, since it is smaller than the sum of its proper divisors (699590448).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388360752 is a wasteful number, since it uses less digits than its factorization.
388360752 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4350 (or 4344 counting only the distinct ones).
The product of its (nonzero) digits is 241920, while the sum is 42.
The square root of 388360752 is about 19706.8706800446. The cubic root of 388360752 is about 729.5892804385.
The spelling of 388360752 in words is "three hundred eighty-eight million, three hundred sixty thousand, seven hundred fifty-two".
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