Base | Representation |
---|---|
bin | 10111000111100… |
… | …111110110011001 |
3 | 1000000212001101011 |
4 | 113013213312121 |
5 | 1243243433301 |
6 | 102253253521 |
7 | 12416606401 |
oct | 2707476631 |
9 | 1000761334 |
10 | 387874201 |
11 | 189a436a0 |
12 | a9a942a1 |
13 | 62487280 |
14 | 39729801 |
15 | 240baa51 |
hex | 171e7d99 |
387874201 has 32 divisors (see below), whose sum is σ = 478679040. Its totient is φ = 309441600.
The previous prime is 387874199. The next prime is 387874243. The reversal of 387874201 is 102478783.
It is not a de Polignac number, because 387874201 - 21 = 387874199 is a prime.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (387874271) 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, 260806 + ... + 262288.
It is an arithmetic number, because the mean of its divisors is an integer number (14958720).
Almost surely, 2387874201 is an apocalyptic number.
387874201 is a gapful number since it is divisible by the number (31) formed by its first and last digit.
It is an amenable number.
387874201 is a deficient number, since it is larger than the sum of its proper divisors (90804839).
387874201 is a wasteful number, since it uses less digits than its factorization.
387874201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1597.
The product of its (nonzero) digits is 75264, while the sum is 40.
The square root of 387874201 is about 19694.5221064132. The cubic root of 387874201 is about 729.2844687053.
The spelling of 387874201 in words is "three hundred eighty-seven million, eight hundred seventy-four thousand, two hundred one".
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