Base | Representation |
---|---|
bin | 1101101001001011011111… |
… | …01110110101011110110100 |
3 | 10221020011222101002220021122 |
4 | 12310211233232311132310 |
5 | 12413024022101024340 |
6 | 143450455145203112 |
7 | 6214406002463141 |
oct | 664455756653664 |
9 | 127204871086248 |
10 | 30002221111220 |
11 | 961796372a866 |
12 | 344676b190498 |
13 | 1398274652a47 |
14 | 75a1883613c8 |
15 | 37065ecb5db5 |
hex | 1b496fbb57b4 |
30002221111220 has 48 divisors (see below), whose sum is σ = 65787509346048. Its totient is φ = 11471513391360.
The previous prime is 30002221111183. The next prime is 30002221111241. The reversal of 30002221111220 is 2211112220003.
It is a congruent number.
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, 20887409 + ... + 22277528.
It is an arithmetic number, because the mean of its divisors is an integer number (1370573111376).
Almost surely, 230002221111220 is an apocalyptic number.
It is an amenable number.
30002221111220 is an abundant number, since it is smaller than the sum of its proper divisors (35785288234828).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30002221111220 is a wasteful number, since it uses less digits than its factorization.
30002221111220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43166480 (or 43166478 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 17.
Adding to 30002221111220 its reverse (2211112220003), we get a palindrome (32213333331223).
The spelling of 30002221111220 in words is "thirty trillion, two billion, two hundred twenty-one million, one hundred eleven thousand, two hundred twenty".
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