Base | Representation |
---|---|
bin | 1001000100000… |
… | …1001101101010 |
3 | 2122112101221110 |
4 | 2101001031222 |
5 | 34213001400 |
6 | 3434451150 |
7 | 641062245 |
oct | 221011552 |
9 | 78471843 |
10 | 38015850 |
11 | 1a505964 |
12 | 10893ab6 |
13 | 7b506b2 |
14 | 509825c |
15 | 350de50 |
hex | 244136a |
38015850 has 24 divisors (see below), whose sum is σ = 94279680. Its totient is φ = 10137520.
The previous prime is 38015837. The next prime is 38015851. The reversal of 38015850 is 5851083.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is not an unprimeable number, because it can be changed into a prime (38015851) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126570 + ... + 126869.
It is an arithmetic number, because the mean of its divisors is an integer number (3928320).
Almost surely, 238015850 is an apocalyptic number.
38015850 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
38015850 is an abundant number, since it is smaller than the sum of its proper divisors (56263830).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38015850 is a wasteful number, since it uses less digits than its factorization.
38015850 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 253454 (or 253449 counting only the distinct ones).
The product of its (nonzero) digits is 4800, while the sum is 30.
The square root of 38015850 is about 6165.6994737013. The cubic root of 38015850 is about 336.2442774370.
The spelling of 38015850 in words is "thirty-eight million, fifteen thousand, eight hundred fifty".
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