Base | Representation |
---|---|
bin | 10010111010001001… |
… | …111000000011000110 |
3 | 1221101221201021212020 |
4 | 102322021320003012 |
5 | 313040033121410 |
6 | 13154352104010 |
7 | 1316061552543 |
oct | 227211700306 |
9 | 57357637766 |
10 | 20303020230 |
11 | 8679586669 |
12 | 3b27535006 |
13 | 1bb73c234c |
14 | da8643bca |
15 | 7dc674a70 |
hex | 4ba2780c6 |
20303020230 has 32 divisors (see below), whose sum is σ = 50845826304. Its totient is φ = 5178741216.
The previous prime is 20303020211. The next prime is 20303020261. The reversal of 20303020230 is 3202030302.
It is a Harshad number since it is a multiple of its sum of digits (15).
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, 14711644 + ... + 14713023.
It is an arithmetic number, because the mean of its divisors is an integer number (1588932072).
Almost surely, 220303020230 is an apocalyptic number.
20303020230 is an abundant number, since it is smaller than the sum of its proper divisors (30542806074).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20303020230 is a wasteful number, since it uses less digits than its factorization.
20303020230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29424700.
The product of its (nonzero) digits is 216, while the sum is 15.
Adding to 20303020230 its reverse (3202030302), we get a palindrome (23505050532).
The spelling of 20303020230 in words is "twenty billion, three hundred three million, twenty thousand, two hundred thirty".
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