Base | Representation |
---|---|
bin | 101111100011101101… |
… | …1110111101111110100 |
3 | 100202121122000201202111 |
4 | 1133013123313233310 |
5 | 3133130314020040 |
6 | 114530141020404 |
7 | 10243611355333 |
oct | 1370733675764 |
9 | 322548021674 |
10 | 102130220020 |
11 | 3a349934a14 |
12 | 17963254704 |
13 | 9827c4b76a |
14 | 4d2bd35d1a |
15 | 29cb270dea |
hex | 17c76f7bf4 |
102130220020 has 12 divisors (see below), whose sum is σ = 214473462084. Its totient is φ = 40852088000.
The previous prime is 102130220011. The next prime is 102130220191. The reversal of 102130220020 is 20022031201.
102130220020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 72437416164 + 29692803856 = 269142^2 + 172316^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553255481 + ... + 2553255520.
It is an arithmetic number, because the mean of its divisors is an integer number (17872788507).
Almost surely, 2102130220020 is an apocalyptic number.
102130220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
102130220020 is an abundant number, since it is smaller than the sum of its proper divisors (112343242064).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
102130220020 is a wasteful number, since it uses less digits than its factorization.
102130220020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5106511010 (or 5106511008 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 13.
Adding to 102130220020 its reverse (20022031201), we get a palindrome (122152251221).
The spelling of 102130220020 in words is "one hundred two billion, one hundred thirty million, two hundred twenty thousand, twenty".
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