Base | Representation |
---|---|
bin | 10010110000100111… |
… | …100001110010101110 |
3 | 1220222210122111111100 |
4 | 102300213201302232 |
5 | 312223103134410 |
6 | 13130434503530 |
7 | 1312106566263 |
oct | 226047416256 |
9 | 56883574440 |
10 | 20143021230 |
11 | 85a7234a92 |
12 | 3aa1a34ba6 |
13 | 1b90202197 |
14 | d912b526a |
15 | 7cd5bc8c0 |
hex | 4b09e1cae |
20143021230 has 24 divisors (see below), whose sum is σ = 52371855432. Its totient is φ = 5371472304.
The previous prime is 20143021147. The next prime is 20143021237. The reversal of 20143021230 is 3212034102.
20143021230 is a `hidden beast` number, since 2 + 0 + 1 + 430 + 2 + 1 + 230 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20143021237) 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 11 ways as a sum of consecutive naturals, for example, 111905584 + ... + 111905763.
It is an arithmetic number, because the mean of its divisors is an integer number (2182160643).
Almost surely, 220143021230 is an apocalyptic number.
20143021230 is an abundant number, since it is smaller than the sum of its proper divisors (32228834202).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20143021230 is a wasteful number, since it uses less digits than its factorization.
20143021230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 223811360 (or 223811357 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 20143021230 its reverse (3212034102), we get a palindrome (23355055332).
The spelling of 20143021230 in words is "twenty billion, one hundred forty-three million, twenty-one thousand, two hundred thirty".
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