Base | Representation |
---|---|
bin | 1001010000101… |
… | …1001000001111 |
3 | 2201002102102202 |
4 | 2110023020033 |
5 | 34420433040 |
6 | 3504312115 |
7 | 651105410 |
oct | 224131017 |
9 | 81072382 |
10 | 38842895 |
11 | 1aa20273 |
12 | 1101263b |
13 | 807cc80 |
14 | 5231807 |
15 | 3624015 |
hex | 250b20f |
38842895 has 16 divisors (see below), whose sum is σ = 57368640. Its totient is φ = 24585984.
The previous prime is 38842891. The next prime is 38842931. The reversal of 38842895 is 59824883.
It is a cyclic number.
It is not a de Polignac number, because 38842895 - 22 = 38842891 is a prime.
It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38842891) 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, 42230 + ... + 43139.
It is an arithmetic number, because the mean of its divisors is an integer number (3585540).
Almost surely, 238842895 is an apocalyptic number.
38842895 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
38842895 is a deficient number, since it is larger than the sum of its proper divisors (18525745).
38842895 is a wasteful number, since it uses less digits than its factorization.
38842895 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 85394.
The product of its digits is 552960, while the sum is 47.
The square root of 38842895 is about 6232.4068384533. The cubic root of 38842895 is about 338.6651671397.
The spelling of 38842895 in words is "thirty-eight million, eight hundred forty-two thousand, eight hundred ninety-five".
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