Base | Representation |
---|---|
bin | 111100001111001… |
… | …0001000110110111 |
3 | 12012212020121120210 |
4 | 1320132101012313 |
5 | 13114411402221 |
6 | 532321200503 |
7 | 101041630164 |
oct | 17036210667 |
9 | 5185217523 |
10 | 2021200311 |
11 | 947a07789 |
12 | 484a90133 |
13 | 26298ac20 |
14 | 15261706b |
15 | bc69e276 |
hex | 787911b7 |
2021200311 has 16 divisors (see below), whose sum is σ = 2906269184. Its totient is φ = 1242087264.
The previous prime is 2021200283. The next prime is 2021200331. The reversal of 2021200311 is 1130021202.
It is not a de Polignac number, because 2021200311 - 213 = 2021192119 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2021200331) 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 15 ways as a sum of consecutive naturals, for example, 7291 + ... + 63996.
It is an arithmetic number, because the mean of its divisors is an integer number (181641824).
Almost surely, 22021200311 is an apocalyptic number.
2021200311 is a deficient number, since it is larger than the sum of its proper divisors (885068873).
2021200311 is a wasteful number, since it uses less digits than its factorization.
2021200311 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 72030.
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 2021200311 is about 44957.7614100168. The cubic root of 2021200311 is about 1264.3571983512.
Adding to 2021200311 its reverse (1130021202), we get a palindrome (3151221513).
The spelling of 2021200311 in words is "two billion, twenty-one million, two hundred thousand, three hundred eleven".
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