Base | Representation |
---|---|
bin | 111100001111001… |
… | …0101111010110110 |
3 | 12012212021121121211 |
4 | 1320132111322312 |
5 | 13114413020042 |
6 | 532321432034 |
7 | 101042041513 |
oct | 17036257266 |
9 | 5185247554 |
10 | 2021220022 |
11 | 947a20578 |
12 | 484a9b61a |
13 | 262996ba3 |
14 | 15262030a |
15 | bc6a5017 |
hex | 78795eb6 |
2021220022 has 8 divisors (see below), whose sum is σ = 3033769536. Its totient is φ = 1009963512.
The previous prime is 2021220017. The next prime is 2021220023. The reversal of 2021220022 is 2200221202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 2021219984 and 2021220011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2021220023) 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 3 ways as a sum of consecutive naturals, for example, 319333 + ... + 325600.
It is an arithmetic number, because the mean of its divisors is an integer number (379221192).
Almost surely, 22021220022 is an apocalyptic number.
2021220022 is a deficient number, since it is larger than the sum of its proper divisors (1012549514).
2021220022 is a wasteful number, since it uses less digits than its factorization.
2021220022 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 646502.
The product of its (nonzero) digits is 64, while the sum is 13.
The square root of 2021220022 is about 44957.9806263582. The cubic root of 2021220022 is about 1264.3613083947.
Adding to 2021220022 its reverse (2200221202), we get a palindrome (4221441224).
The spelling of 2021220022 in words is "two billion, twenty-one million, two hundred twenty thousand, twenty-two".
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