Base | Representation |
---|---|
bin | 1001000101000… |
… | …0011100011001 |
3 | 2122122120111221 |
4 | 2101100130121 |
5 | 34222000413 |
6 | 3440052041 |
7 | 641442154 |
oct | 221203431 |
9 | 78576457 |
10 | 38078233 |
11 | 1a548816 |
12 | 10904021 |
13 | 7b72bcb |
14 | 50b2c9b |
15 | 352268d |
hex | 2450719 |
38078233 has 2 divisors, whose sum is σ = 38078234. Its totient is φ = 38078232.
The previous prime is 38078231. The next prime is 38078239. The reversal of 38078233 is 33287083.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 23309584 + 14768649 = 4828^2 + 3843^2 .
It is an emirp because it is prime and its reverse (33287083) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 38078233 - 21 = 38078231 is a prime.
Together with 38078231, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (38078231) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19039116 + 19039117.
It is an arithmetic number, because the mean of its divisors is an integer number (19039117).
Almost surely, 238078233 is an apocalyptic number.
It is an amenable number.
38078233 is a deficient number, since it is larger than the sum of its proper divisors (1).
38078233 is an equidigital number, since it uses as much as digits as its factorization.
38078233 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 24192, while the sum is 34.
The square root of 38078233 is about 6170.7562745582. The cubic root of 38078233 is about 336.4280995670.
The spelling of 38078233 in words is "thirty-eight million, seventy-eight thousand, two hundred thirty-three".
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