Base | Representation |
---|---|
bin | 10010101111011000… |
… | …111100011111111001 |
3 | 1220221100212220121210 |
4 | 102233120330133321 |
5 | 312202314434431 |
6 | 13124421153333 |
7 | 1311436521066 |
oct | 225730743771 |
9 | 56840786553 |
10 | 20122421241 |
11 | 85966449aa |
12 | 3a96b5b849 |
13 | 1b88b6b940 |
14 | d8c671c6d |
15 | 7cb89dd46 |
hex | 4af63c7f9 |
20122421241 has 8 divisors (see below), whose sum is σ = 28893733120. Its totient is φ = 12383028432.
The previous prime is 20122421237. The next prime is 20122421273. The reversal of 20122421241 is 14212422102.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20122421241 - 22 = 20122421237 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (20122421441) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257979721 + ... + 257979798.
It is an arithmetic number, because the mean of its divisors is an integer number (3611716640).
Almost surely, 220122421241 is an apocalyptic number.
It is an amenable number.
20122421241 is a deficient number, since it is larger than the sum of its proper divisors (8771311879).
20122421241 is a wasteful number, since it uses less digits than its factorization.
20122421241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 515959535.
The product of its (nonzero) digits is 512, while the sum is 21.
Adding to 20122421241 its reverse (14212422102), we get a palindrome (34334843343).
The spelling of 20122421241 in words is "twenty billion, one hundred twenty-two million, four hundred twenty-one thousand, two hundred forty-one".
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