Base | Representation |
---|---|
bin | 10111000111101… |
… | …010110000101010 |
3 | 1000000212122201200 |
4 | 113013222300222 |
5 | 1243244323442 |
6 | 102253425030 |
7 | 12416656221 |
oct | 2707526052 |
9 | 1000778650 |
10 | 387886122 |
11 | 189a51648 |
12 | a9a9b176 |
13 | 6248c820 |
14 | 3972dcb8 |
15 | 240be34c |
hex | 171eac2a |
387886122 has 96 divisors (see below), whose sum is σ = 955438848. Its totient is φ = 112831488.
The previous prime is 387886111. The next prime is 387886123. The reversal of 387886122 is 221688783.
It is not an unprimeable number, because it can be changed into a prime (387886123) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 521683 + ... + 522425.
It is an arithmetic number, because the mean of its divisors is an integer number (9952488).
Almost surely, 2387886122 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 387886122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (477719424).
387886122 is an abundant number, since it is smaller than the sum of its proper divisors (567552726).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
387886122 is a wasteful number, since it uses less digits than its factorization.
387886122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 884 (or 881 counting only the distinct ones).
The product of its digits is 258048, while the sum is 45.
The square root of 387886122 is about 19694.8247516956. The cubic root of 387886122 is about 729.2919399516.
It can be divided in two parts, 3878 and 86122, that added together give a square (90000 = 3002).
The spelling of 387886122 in words is "three hundred eighty-seven million, eight hundred eighty-six thousand, one hundred twenty-two".
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