Base | Representation |
---|---|
bin | 10010101000110011… |
… | …110011101010011110 |
3 | 1220122200011001220221 |
4 | 102220303303222132 |
5 | 311441034204210 |
6 | 13105435031554 |
7 | 1305626245501 |
oct | 225063635236 |
9 | 56580131827 |
10 | 20012022430 |
11 | 853a2a0714 |
12 | 3a65b9b5ba |
13 | 1b6c026bba |
14 | d7bb35138 |
15 | 7c1d431da |
hex | 4a8cf3a9e |
20012022430 has 64 divisors (see below), whose sum is σ = 38549364480. Its totient is φ = 7453555200.
The previous prime is 20012022421. The next prime is 20012022451. The reversal of 20012022430 is 3422021002.
It is a congruent number.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 8439145 + ... + 8441515.
It is an arithmetic number, because the mean of its divisors is an integer number (602333820).
Almost surely, 220012022430 is an apocalyptic number.
20012022430 is a deficient number, since it is larger than the sum of its proper divisors (18537342050).
20012022430 is a wasteful number, since it uses less digits than its factorization.
20012022430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2905.
The product of its (nonzero) digits is 192, while the sum is 16.
Adding to 20012022430 its reverse (3422021002), we get a palindrome (23434043432).
The spelling of 20012022430 in words is "twenty billion, twelve million, twenty-two thousand, four hundred thirty".
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