Base | Representation |
---|---|
bin | 111111010001010… |
… | …1101111000001111 |
3 | 12110221212002200220 |
4 | 1332202231320033 |
5 | 13321443430111 |
6 | 550355522423 |
7 | 103416312633 |
oct | 17642557017 |
9 | 5427762626 |
10 | 2123030031 |
11 | 99a438981 |
12 | 4b2bb9413 |
13 | 27aac24b5 |
14 | 161d62dc3 |
15 | c65b5e06 |
hex | 7e8ade0f |
2123030031 has 8 divisors (see below), whose sum is σ = 2877111984. Its totient is φ = 1392150720.
The previous prime is 2123030029. The next prime is 2123030033. The reversal of 2123030031 is 1300303212.
It is an interprime number because it is at equal distance from previous prime (2123030029) and next prime (2123030033).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2123030031 - 21 = 2123030029 is a prime.
It is a super-2 number, since 2×21230300312 = 9014513025055721922, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2123030033) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5800446 + ... + 5800811.
It is an arithmetic number, because the mean of its divisors is an integer number (359638998).
Almost surely, 22123030031 is an apocalyptic number.
2123030031 is a deficient number, since it is larger than the sum of its proper divisors (754081953).
2123030031 is a wasteful number, since it uses less digits than its factorization.
2123030031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11601321.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 2123030031 is about 46076.3500182035. The cubic root of 2123030031 is about 1285.2433905372.
Adding to 2123030031 its reverse (1300303212), we get a palindrome (3423333243).
The spelling of 2123030031 in words is "two billion, one hundred twenty-three million, thirty thousand, thirty-one".
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