Base | Representation |
---|---|
bin | 10111001011001… |
… | …100000001100010 |
3 | 1000002121112102000 |
4 | 113023030001202 |
5 | 1244013340202 |
6 | 102325304430 |
7 | 12430551234 |
oct | 2713140142 |
9 | 1002545360 |
10 | 388808802 |
11 | 18a521898 |
12 | aa265116 |
13 | 627237a5 |
14 | 398d0254 |
15 | 2420291c |
hex | 172cc062 |
388808802 has 64 divisors (see below), whose sum is σ = 939651840. Its totient is φ = 118672128.
The previous prime is 388808801. The next prime is 388808803. The reversal of 388808802 is 208808883.
It is an interprime number because it is at equal distance from previous prime (388808801) and next prime (388808803).
It is not an unprimeable number, because it can be changed into a prime (388808801) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28243 + ... + 39689.
It is an arithmetic number, because the mean of its divisors is an integer number (14682060).
Almost surely, 2388808802 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 388808802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469825920).
388808802 is an abundant number, since it is smaller than the sum of its proper divisors (550843038).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388808802 is a wasteful number, since it uses less digits than its factorization.
388808802 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11512 (or 11506 counting only the distinct ones).
The product of its (nonzero) digits is 196608, while the sum is 45.
The square root of 388808802 is about 19718.2352658649. The cubic root of 388808802 is about 729.8697471991.
The spelling of 388808802 in words is "three hundred eighty-eight million, eight hundred eight thousand, eight hundred two".
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