Base | Representation |
---|---|
bin | 10111001011100… |
… | …110101100101110 |
3 | 1000002211002021200 |
4 | 113023212230232 |
5 | 1244030334222 |
6 | 102331510330 |
7 | 12431514621 |
oct | 2713465456 |
9 | 1002732250 |
10 | 388918062 |
11 | 18a596995 |
12 | aa2b83a6 |
13 | 62761440 |
14 | 3991bdb8 |
15 | 24224eac |
hex | 172e6b2e |
388918062 has 48 divisors (see below), whose sum is σ = 910972608. Its totient is φ = 119206080.
The previous prime is 388918039. The next prime is 388918073. The reversal of 388918062 is 260819883.
It is a junction number, because it is equal to n+sod(n) for n = 388917999 and 388918017.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60348 + ... + 66480.
It is an arithmetic number, because the mean of its divisors is an integer number (18978596).
Almost surely, 2388918062 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 388918062, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455486304).
388918062 is an abundant number, since it is smaller than the sum of its proper divisors (522054546).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388918062 is a wasteful number, since it uses less digits than its factorization.
388918062 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6425 (or 6422 counting only the distinct ones).
The product of its (nonzero) digits is 165888, while the sum is 45.
The square root of 388918062 is about 19721.0056031633. The cubic root of 388918062 is about 729.9381082200.
The spelling of 388918062 in words is "three hundred eighty-eight million, nine hundred eighteen thousand, sixty-two".
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