Base | Representation |
---|---|
bin | 1001000110010… |
… | …0011000111010 |
3 | 2122210201120202 |
4 | 2101210120322 |
5 | 34232104210 |
6 | 3441522202 |
7 | 642232304 |
oct | 221443072 |
9 | 78721522 |
10 | 38159930 |
11 | 1a5a4136 |
12 | 10943362 |
13 | 7ba1153 |
14 | 50d4974 |
15 | 353b9a5 |
hex | 246463a |
38159930 has 32 divisors (see below), whose sum is σ = 70918848. Its totient is φ = 14774400.
The previous prime is 38159929. The next prime is 38159939. The reversal of 38159930 is 3995183.
It is not an unprimeable number, because it can be changed into a prime (38159939) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66545 + ... + 67115.
It is an arithmetic number, because the mean of its divisors is an integer number (2216214).
Almost surely, 238159930 is an apocalyptic number.
38159930 is a deficient number, since it is larger than the sum of its proper divisors (32758918).
38159930 is a wasteful number, since it uses less digits than its factorization.
38159930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 782.
The product of its (nonzero) digits is 29160, while the sum is 38.
The square root of 38159930 is about 6177.3724187554. The cubic root of 38159930 is about 336.6685303081.
The spelling of 38159930 in words is "thirty-eight million, one hundred fifty-nine thousand, nine hundred thirty".
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