Base | Representation |
---|---|
bin | 11100010111111… |
… | …00011111010001 |
3 | 121120212021120221 |
4 | 32023330133101 |
5 | 441412343434 |
6 | 35341233041 |
7 | 5620033420 |
oct | 1613743721 |
9 | 546767527 |
10 | 238012369 |
11 | 112396241 |
12 | 67862781 |
13 | 3a40622a |
14 | 238792b7 |
15 | 15d672b4 |
hex | e2fc7d1 |
238012369 has 4 divisors (see below), whose sum is σ = 272014144. Its totient is φ = 204010596.
The previous prime is 238012363. The next prime is 238012387. The reversal of 238012369 is 963210832.
It is a happy number.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 238012369 - 25 = 238012337 is a prime.
It is a super-2 number, since 2×2380123692 = 113299775593984322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (238012363) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17000877 + ... + 17000890.
It is an arithmetic number, because the mean of its divisors is an integer number (68003536).
Almost surely, 2238012369 is an apocalyptic number.
It is an amenable number.
238012369 is a deficient number, since it is larger than the sum of its proper divisors (34001775).
238012369 is an equidigital number, since it uses as much as digits as its factorization.
238012369 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34001774.
The product of its (nonzero) digits is 15552, while the sum is 34.
The square root of 238012369 is about 15427.6494969260. The cubic root of 238012369 is about 619.7261789469.
The spelling of 238012369 in words is "two hundred thirty-eight million, twelve thousand, three hundred sixty-nine".
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