Base | Representation |
---|---|
bin | 10100111001100010… |
… | …11001100110100100 |
3 | 1001221221122200010020 |
4 | 22130301121212210 |
5 | 140434323131322 |
6 | 5053210155140 |
7 | 545021350614 |
oct | 123461314644 |
9 | 31857580106 |
10 | 11220130212 |
11 | 483851a995 |
12 | 2211722ab0 |
13 | 109a70c405 |
14 | 786212a44 |
15 | 45a07305c |
hex | 29cc599a4 |
11220130212 has 24 divisors (see below), whose sum is σ = 26331639936. Its totient is φ = 3718423968.
The previous prime is 11220130183. The next prime is 11220130279. The reversal of 11220130212 is 21203102211.
It is a junction number, because it is equal to n+sod(n) for n = 11220130191 and 11220130200.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2700268 + ... + 2704419.
It is an arithmetic number, because the mean of its divisors is an integer number (1097151664).
Almost surely, 211220130212 is an apocalyptic number.
11220130212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
11220130212 is an abundant number, since it is smaller than the sum of its proper divisors (15111509724).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11220130212 is a wasteful number, since it uses less digits than its factorization.
11220130212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5404867 (or 5404865 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 15.
Adding to 11220130212 its reverse (21203102211), we get a palindrome (32423232423).
The spelling of 11220130212 in words is "eleven billion, two hundred twenty million, one hundred thirty thousand, two hundred twelve".
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