Base | Representation |
---|---|
bin | 10111001001100… |
… | …011010110010000 |
3 | 1000001210202021020 |
4 | 113021203112100 |
5 | 1243411130143 |
6 | 102312155440 |
7 | 12424114230 |
oct | 2711432620 |
9 | 1001722236 |
10 | 388380048 |
11 | 18a259751 |
12 | aa098b80 |
13 | 626035a4 |
14 | 3981bcc0 |
15 | 2416a883 |
hex | 17263590 |
388380048 has 80 divisors (see below), whose sum is σ = 1151176320. Its totient is φ = 110527488.
The previous prime is 388380029. The next prime is 388380049. The reversal of 388380048 is 840083883.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a junction number, because it is equal to n+sod(n) for n = 388379991 and 388380009.
It is not an unprimeable number, because it can be changed into a prime (388380049) 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, 88236 + ... + 92532.
It is an arithmetic number, because the mean of its divisors is an integer number (14389704).
Almost surely, 2388380048 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 388380048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (575588160).
388380048 is an abundant number, since it is smaller than the sum of its proper divisors (762796272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388380048 is a wasteful number, since it uses less digits than its factorization.
388380048 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4584 (or 4578 counting only the distinct ones).
The product of its (nonzero) digits is 147456, while the sum is 42.
The square root of 388380048 is about 19707.3602494094. The cubic root of 388380048 is about 729.6013636382.
The spelling of 388380048 in words is "three hundred eighty-eight million, three hundred eighty thousand, forty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.091 sec. • engine limits •