Base | Representation |
---|---|
bin | 1001000100100… |
… | …1100000001101 |
3 | 2122121010112001 |
4 | 2101021200031 |
5 | 34220043210 |
6 | 3435312301 |
7 | 641263243 |
oct | 221114015 |
9 | 78533461 |
10 | 38049805 |
11 | 1a529422 |
12 | 108ab691 |
13 | 7b62ca1 |
14 | 50a6793 |
15 | 351903a |
hex | 244980d |
38049805 has 8 divisors (see below), whose sum is σ = 45693432. Its totient is φ = 30417408.
The previous prime is 38049731. The next prime is 38049811. The reversal of 38049805 is 50894083.
It can be written as a sum of positive squares in 4 ways, for example, as 10738729 + 27311076 = 3277^2 + 5226^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 38049805 - 27 = 38049677 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9829 + ... + 13141.
It is an arithmetic number, because the mean of its divisors is an integer number (5711679).
Almost surely, 238049805 is an apocalyptic number.
It is an amenable number.
38049805 is a deficient number, since it is larger than the sum of its proper divisors (7643627).
38049805 is a wasteful number, since it uses less digits than its factorization.
38049805 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5615.
The product of its (nonzero) digits is 34560, while the sum is 37.
The square root of 38049805 is about 6168.4523991030. The cubic root of 38049805 is about 336.3443565437.
The spelling of 38049805 in words is "thirty-eight million, forty-nine thousand, eight hundred five".
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