Base | Representation |
---|---|
bin | 10010101111111101… |
… | …111111100010011100 |
3 | 1220222001011022200022 |
4 | 102233331333202130 |
5 | 312212311224040 |
6 | 13125405251312 |
7 | 1311615210236 |
oct | 225775774234 |
9 | 56861138608 |
10 | 20132133020 |
11 | 85a107856a |
12 | 3a9a263b38 |
13 | 1b8ab8c25c |
14 | d8da7d256 |
15 | 7cc66b6b5 |
hex | 4aff7f89c |
20132133020 has 24 divisors (see below), whose sum is σ = 43260678384. Its totient is φ = 7865577216.
The previous prime is 20132133019. The next prime is 20132133041. The reversal of 20132133020 is 2033123102.
It is a self number, because there is not a number n which added to its sum of digits gives 20132133020.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11703869 + ... + 11705588.
It is an arithmetic number, because the mean of its divisors is an integer number (1802528266).
Almost surely, 220132133020 is an apocalyptic number.
20132133020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20132133020 is an abundant number, since it is smaller than the sum of its proper divisors (23128545364).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20132133020 is a wasteful number, since it uses less digits than its factorization.
20132133020 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23409509 (or 23409507 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 17.
Adding to 20132133020 its reverse (2033123102), we get a palindrome (22165256122).
The spelling of 20132133020 in words is "twenty billion, one hundred thirty-two million, one hundred thirty-three thousand, twenty".
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