Base | Representation |
---|---|
bin | 1001000101000… |
… | …1110011100011 |
3 | 2122122212011112 |
4 | 2101101303203 |
5 | 34222140221 |
6 | 3440133535 |
7 | 641464343 |
oct | 221216343 |
9 | 78585145 |
10 | 38083811 |
11 | 1a551a27 |
12 | 109072ab |
13 | 7b755cc |
14 | 50b4d23 |
15 | 352415b |
hex | 2451ce3 |
38083811 has 4 divisors (see below), whose sum is σ = 38114472. Its totient is φ = 38053152.
The previous prime is 38083807. The next prime is 38083819. The reversal of 38083811 is 11838083.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11838083 = 19 ⋅623057.
It is a cyclic number.
It is not a de Polignac number, because 38083811 - 22 = 38083807 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38083819) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13385 + ... + 15978.
It is an arithmetic number, because the mean of its divisors is an integer number (9528618).
Almost surely, 238083811 is an apocalyptic number.
38083811 is a deficient number, since it is larger than the sum of its proper divisors (30661).
38083811 is a wasteful number, since it uses less digits than its factorization.
38083811 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30660.
The product of its (nonzero) digits is 4608, while the sum is 32.
The square root of 38083811 is about 6171.2082285400. The cubic root of 38083811 is about 336.4445263124. Note that the first 3 decimals are identical.
The spelling of 38083811 in words is "thirty-eight million, eighty-three thousand, eight hundred eleven".
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