Base | Representation |
---|---|
bin | 10111000111010… |
… | …011010100110010 |
3 | 1000000200210001102 |
4 | 113013103110302 |
5 | 1243233241010 |
6 | 102251404402 |
7 | 12416106320 |
oct | 2707232462 |
9 | 1000623042 |
10 | 387790130 |
11 | 189996512 |
12 | a9a53702 |
13 | 62457c20 |
14 | 39706d10 |
15 | 240a0ba5 |
hex | 171d3532 |
387790130 has 64 divisors (see below), whose sum is σ = 865928448. Its totient is φ = 121754880.
The previous prime is 387790121. The next prime is 387790141. The reversal of 387790130 is 31097783.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117584 + ... + 120836.
It is an arithmetic number, because the mean of its divisors is an integer number (13530132).
Almost surely, 2387790130 is an apocalyptic number.
387790130 is an abundant number, since it is smaller than the sum of its proper divisors (478138318).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
387790130 is a wasteful number, since it uses less digits than its factorization.
387790130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3411.
The product of its (nonzero) digits is 31752, while the sum is 38.
The square root of 387790130 is about 19692.3876155229. The cubic root of 387790130 is about 729.2317745545.
The spelling of 387790130 in words is "three hundred eighty-seven million, seven hundred ninety thousand, one hundred thirty".
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