Base | Representation |
---|---|
bin | 10010101001111101… |
… | …010110101001000010 |
3 | 1220201000102120210212 |
4 | 102221331112221002 |
5 | 312011003132320 |
6 | 13111404154122 |
7 | 1306252154663 |
oct | 225175265102 |
9 | 56630376725 |
10 | 20031302210 |
11 | 854a169917 |
12 | 3a70538942 |
13 | 1b7301755a |
14 | d8051336a |
15 | 7c38a09c5 |
hex | 4a9f56a42 |
20031302210 has 16 divisors (see below), whose sum is σ = 36138484800. Its totient is φ = 7994267376.
The previous prime is 20031302129. The next prime is 20031302231. The reversal of 20031302210 is 1220313002.
It is a happy number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 2277080 + ... + 2285859.
It is an arithmetic number, because the mean of its divisors is an integer number (2258655300).
Almost surely, 220031302210 is an apocalyptic number.
20031302210 is a deficient number, since it is larger than the sum of its proper divisors (16107182590).
20031302210 is a wasteful number, since it uses less digits than its factorization.
20031302210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4563385.
The product of its (nonzero) digits is 72, while the sum is 14.
Adding to 20031302210 its reverse (1220313002), we get a palindrome (21251615212).
The spelling of 20031302210 in words is "twenty billion, thirty-one million, three hundred two thousand, two hundred ten".
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