Base | Representation |
---|---|
bin | 10010101001111000… |
… | …110001101001010111 |
3 | 1220200221011121120110 |
4 | 102221320301221113 |
5 | 312010201231403 |
6 | 13111322334103 |
7 | 1306236026064 |
oct | 225170615127 |
9 | 56627147513 |
10 | 20030102103 |
11 | 854951a1a0 |
12 | 3a7005a333 |
13 | 1b729b722b |
14 | d802bdc6b |
15 | 7c3715103 |
hex | 4a9e31a57 |
20030102103 has 32 divisors (see below), whose sum is σ = 29558131200. Its totient is φ = 11963916800.
The previous prime is 20030102041. The next prime is 20030102111. The reversal of 20030102103 is 30120103002.
It is a happy number.
It is not a de Polignac number, because 20030102103 - 228 = 19761666647 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20030102503) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 902443 + ... + 924371.
It is an arithmetic number, because the mean of its divisors is an integer number (923691600).
Almost surely, 220030102103 is an apocalyptic number.
20030102103 is a deficient number, since it is larger than the sum of its proper divisors (9528029097).
20030102103 is a wasteful number, since it uses less digits than its factorization.
20030102103 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22343.
The product of its (nonzero) digits is 36, while the sum is 12.
Adding to 20030102103 its reverse (30120103002), we get a palindrome (50150205105).
The spelling of 20030102103 in words is "twenty billion, thirty million, one hundred two thousand, one hundred three".
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