Base | Representation |
---|---|
bin | 10010101000111000… |
… | …011001000100010010 |
3 | 1220122202102010110022 |
4 | 102220320121010102 |
5 | 311441341133320 |
6 | 13105520503442 |
7 | 1305642412310 |
oct | 225070310422 |
9 | 56582363408 |
10 | 20013224210 |
11 | 853aa41621 |
12 | 3a6647ab82 |
13 | 1b6c357c05 |
14 | d7bd690b0 |
15 | 7c1ece325 |
hex | 4a8e19112 |
20013224210 has 64 divisors (see below), whose sum is σ = 44071603200. Its totient is φ = 6390332352.
The previous prime is 20013224201. The next prime is 20013224219. The reversal of 20013224210 is 1242231002.
It is an interprime number because it is at equal distance from previous prime (20013224201) and next prime (20013224219).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (20013224219) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49052 + ... + 205991.
It is an arithmetic number, because the mean of its divisors is an integer number (688618800).
Almost surely, 220013224210 is an apocalyptic number.
20013224210 is an abundant number, since it is smaller than the sum of its proper divisors (24058378990).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20013224210 is a wasteful number, since it uses less digits than its factorization.
20013224210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 255135.
The product of its (nonzero) digits is 192, while the sum is 17.
Adding to 20013224210 its reverse (1242231002), we get a palindrome (21255455212).
The spelling of 20013224210 in words is "twenty billion, thirteen million, two hundred twenty-four thousand, two hundred ten".
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