Base | Representation |
---|---|
bin | 10010101001010010… |
… | …010110101000110010 |
3 | 1220200020012220020200 |
4 | 102221102112220302 |
5 | 312000111430002 |
6 | 13110322420030 |
7 | 1306054306260 |
oct | 225122265062 |
9 | 56606186220 |
10 | 20020030002 |
11 | 854386a945 |
12 | 3a68801616 |
13 | 1b7089b8cb |
14 | d7cc1b430 |
15 | 7c28c5b1c |
hex | 4a9496a32 |
20020030002 has 24 divisors (see below), whose sum is σ = 49573407936. Its totient is φ = 5720008536.
The previous prime is 20020029983. The next prime is 20020030021. The reversal of 20020030002 is 20003002002.
It is an interprime number because it is at equal distance from previous prime (20020029983) and next prime (20020030021).
It is a super-3 number, since 3×200200300023 (a number of 32 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79444438 + ... + 79444689.
It is an arithmetic number, because the mean of its divisors is an integer number (2065558664).
Almost surely, 220020030002 is an apocalyptic number.
20020030002 is an abundant number, since it is smaller than the sum of its proper divisors (29553377934).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20020030002 is a wasteful number, since it uses less digits than its factorization.
20020030002 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 158889142 (or 158889139 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 9.
Adding to 20020030002 its reverse (20003002002), we get a palindrome (40023032004).
The spelling of 20020030002 in words is "twenty billion, twenty million, thirty thousand, two".
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