Base | Representation |
---|---|
bin | 10010101000110100… |
… | …001110011110000110 |
3 | 1220122200100122112121 |
4 | 102220310032132012 |
5 | 311441101212410 |
6 | 13105441240154 |
7 | 1305630213556 |
oct | 225064163606 |
9 | 56580318477 |
10 | 20012132230 |
11 | 853a366162 |
12 | 3a6603305a |
13 | 1b6c064b7c |
14 | d7bb63166 |
15 | 7c1d659da |
hex | 4a8d0e786 |
20012132230 has 32 divisors (see below), whose sum is σ = 36146373120. Its totient is φ = 7977217920.
The previous prime is 20012132221. The next prime is 20012132281. The reversal of 20012132230 is 3223121002.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8210572 + ... + 8213008.
It is an arithmetic number, because the mean of its divisors is an integer number (1129574160).
Almost surely, 220012132230 is an apocalyptic number.
20012132230 is a deficient number, since it is larger than the sum of its proper divisors (16134240890).
20012132230 is a wasteful number, since it uses less digits than its factorization.
20012132230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4944.
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 20012132230 its reverse (3223121002), we get a palindrome (23235253232).
The spelling of 20012132230 in words is "twenty billion, twelve million, one hundred thirty-two thousand, two hundred thirty".
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