Base | Representation |
---|---|
bin | 10110111101011… |
… | …111110111111000 |
3 | 222211212012121200 |
4 | 112331133313320 |
5 | 1242104020323 |
6 | 102120334200 |
7 | 12355213431 |
oct | 2675376770 |
9 | 884765550 |
10 | 385220088 |
11 | 1884a0610 |
12 | a9014360 |
13 | 61a681a6 |
14 | 39238488 |
15 | 23c44443 |
hex | 16f5fdf8 |
385220088 has 48 divisors (see below), whose sum is σ = 1138152600. Its totient is φ = 116733120.
The previous prime is 385220081. The next prime is 385220093. The reversal of 385220088 is 880022583.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (385220081) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242403 + ... + 243986.
Almost surely, 2385220088 is an apocalyptic number.
It is an amenable number.
385220088 is an abundant number, since it is smaller than the sum of its proper divisors (752932512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
385220088 is a wasteful number, since it uses less digits than its factorization.
385220088 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 486412 (or 486405 counting only the distinct ones).
The product of its (nonzero) digits is 30720, while the sum is 36.
The square root of 385220088 is about 19627.0244306161. The cubic root of 385220088 is about 727.6172312586.
The spelling of 385220088 in words is "three hundred eighty-five million, two hundred twenty thousand, eighty-eight".
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