Base | Representation |
---|---|
bin | 10111000101000… |
… | …011100011010010 |
3 | 222222120212020110 |
4 | 113011003203102 |
5 | 1243110414414 |
6 | 102231022150 |
7 | 12411104400 |
oct | 2705034322 |
9 | 888525213 |
10 | 387201234 |
11 | 189624022 |
12 | a980a956 |
13 | 622acb74 |
14 | 395d2470 |
15 | 23ed6459 |
hex | 171438d2 |
387201234 has 48 divisors (see below), whose sum is σ = 906984000. Its totient is φ = 109874016.
The previous prime is 387201233. The next prime is 387201257. The reversal of 387201234 is 432102783.
It is a super-2 number, since 2×3872012342 = 299849591222245512, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (387201233) 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 23 ways as a sum of consecutive naturals, for example, 39387 + ... + 48225.
It is an arithmetic number, because the mean of its divisors is an integer number (18895500).
Almost surely, 2387201234 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 387201234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453492000).
387201234 is an abundant number, since it is smaller than the sum of its proper divisors (519782766).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
387201234 is a wasteful number, since it uses less digits than its factorization.
387201234 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9007 (or 9000 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 30.
The square root of 387201234 is about 19677.4295577446. The cubic root of 387201234 is about 728.8624517275.
The spelling of 387201234 in words is "three hundred eighty-seven million, two hundred one thousand, two hundred thirty-four".
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