Base | Representation |
---|---|
bin | 1001001111001… |
… | …1000000101001 |
3 | 2200220101220212 |
4 | 2103303000221 |
5 | 34404302410 |
6 | 3502230505 |
7 | 650214401 |
oct | 223630051 |
9 | 80811825 |
10 | 38744105 |
11 | 1a963024 |
12 | 10b85435 |
13 | 804700a |
14 | 5207801 |
15 | 3604b05 |
hex | 24f3029 |
38744105 has 16 divisors (see below), whose sum is σ = 49726224. Its totient is φ = 28876800.
The previous prime is 38744053. The next prime is 38744107. The reversal of 38744105 is 50144783.
It can be written as a sum of positive squares in 8 ways, for example, as 5929 + 38738176 = 77^2 + 6224^2 .
It is not a de Polignac number, because 38744105 - 28 = 38743849 is a prime.
It is a super-2 number, since 2×387441052 = 3002211344502050, which contains 22 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (38744107) 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, 6329 + ... + 10841.
It is an arithmetic number, because the mean of its divisors is an integer number (3107889).
Almost surely, 238744105 is an apocalyptic number.
It is an amenable number.
38744105 is a deficient number, since it is larger than the sum of its proper divisors (10982119).
38744105 is a wasteful number, since it uses less digits than its factorization.
38744105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4636.
The product of its (nonzero) digits is 13440, while the sum is 32.
The square root of 38744105 is about 6224.4762831904. The cubic root of 38744105 is about 338.3778118352.
Adding to 38744105 its reverse (50144783), we get a palindrome (88888888).
The spelling of 38744105 in words is "thirty-eight million, seven hundred forty-four thousand, one hundred five".
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