Base | Representation |
---|---|
bin | 1100010110111000100… |
… | …0100010110100001100 |
3 | 202021222122000212221121 |
4 | 3011232020202310030 |
5 | 11434243042143040 |
6 | 241310234010324 |
7 | 21224006560516 |
oct | 3055610426414 |
9 | 667878025847 |
10 | 212301131020 |
11 | 820444a9a90 |
12 | 3518b2769a4 |
13 | 17034989524 |
14 | a3bdac8bb6 |
15 | 57c8378c4a |
hex | 316e222d0c |
212301131020 has 48 divisors (see below), whose sum is σ = 486470573568. Its totient is φ = 77183271360.
The previous prime is 212301130981. The next prime is 212301131039. The reversal of 212301131020 is 20131103212.
It is a junction number, because it is equal to n+sod(n) for n = 212301130985 and 212301131003.
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, 907837 + ... + 1117483.
It is an arithmetic number, because the mean of its divisors is an integer number (10134803616).
Almost surely, 2212301131020 is an apocalyptic number.
212301131020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
212301131020 is an abundant number, since it is smaller than the sum of its proper divisors (274169442548).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212301131020 is a wasteful number, since it uses less digits than its factorization.
212301131020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 214270 (or 214268 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 212301131020 its reverse (20131103212), we get a palindrome (232432234232).
The spelling of 212301131020 in words is "two hundred twelve billion, three hundred one million, one hundred thirty-one thousand, twenty".
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