Base | Representation |
---|---|
bin | 111100001111001… |
… | …1000010111000111 |
3 | 12012212022010100020 |
4 | 1320132120113013 |
5 | 13114413330043 |
6 | 532321550223 |
7 | 101042112621 |
oct | 17036302707 |
9 | 5185263306 |
10 | 2021230023 |
11 | 947a2803a |
12 | 484aa5373 |
13 | 26299b5c7 |
14 | 152623c11 |
15 | bc6a7e83 |
hex | 787985c7 |
2021230023 has 8 divisors (see below), whose sum is σ = 2787903600. Its totient is φ = 1301021568.
The previous prime is 2021229967. The next prime is 2021230033. The reversal of 2021230023 is 3200321202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2021230023 - 214 = 2021213639 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 2021229984 and 2021230011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2021230033) 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 7 ways as a sum of consecutive naturals, for example, 11616178 + ... + 11616351.
It is an arithmetic number, because the mean of its divisors is an integer number (348487950).
Almost surely, 22021230023 is an apocalyptic number.
2021230023 is a deficient number, since it is larger than the sum of its proper divisors (766673577).
2021230023 is a wasteful number, since it uses less digits than its factorization.
2021230023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23232561.
The product of its (nonzero) digits is 144, while the sum is 15.
The square root of 2021230023 is about 44958.0918523017. The cubic root of 2021230023 is about 1264.3633937452.
Adding to 2021230023 its reverse (3200321202), we get a palindrome (5221551225).
The spelling of 2021230023 in words is "two billion, twenty-one million, two hundred thirty thousand, twenty-three".
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