Base | Representation |
---|---|
bin | 1000010000001010… |
… | …1100101111011001 |
3 | 12201101110220101021 |
4 | 2010002230233121 |
5 | 14014104100212 |
6 | 1003453322441 |
7 | 105616511515 |
oct | 20402545731 |
9 | 5641426337 |
10 | 2215300057 |
11 | a3752a7a3 |
12 | 519a96421 |
13 | 293c5a749 |
14 | 170301145 |
15 | ce740307 |
hex | 840acbd9 |
2215300057 has 4 divisors (see below), whose sum is σ = 2215631376. Its totient is φ = 2214968740.
The previous prime is 2215300033. The next prime is 2215300093. The reversal of 2215300057 is 7500035122.
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, and also an emirpimes, since its reverse is a distinct semiprime: 7500035122 = 2 ⋅3750017561.
It is a cyclic number.
It is not a de Polignac number, because 2215300057 - 211 = 2215298009 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2215300007) 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, 155419 + ... + 169072.
It is an arithmetic number, because the mean of its divisors is an integer number (553907844).
Almost surely, 22215300057 is an apocalyptic number.
It is an amenable number.
2215300057 is a deficient number, since it is larger than the sum of its proper divisors (331319).
2215300057 is an equidigital number, since it uses as much as digits as its factorization.
2215300057 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 331318.
The product of its (nonzero) digits is 2100, while the sum is 25.
The square root of 2215300057 is about 47066.9741644818. The cubic root of 2215300057 is about 1303.5995030212.
Adding to 2215300057 its reverse (7500035122), we get a palindrome (9715335179).
The spelling of 2215300057 in words is "two billion, two hundred fifteen million, three hundred thousand, fifty-seven".
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