Base | Representation |
---|---|
bin | 10010101011101101… |
… | …00110101100011100 |
3 | 221220000210122200012 |
4 | 21111312212230130 |
5 | 131020224442340 |
6 | 4335144222352 |
7 | 503363150525 |
oct | 112566465434 |
9 | 27800718605 |
10 | 10030312220 |
11 | 4287939035 |
12 | 1b3b16a9b8 |
13 | c3b0715b6 |
14 | 6b21b384c |
15 | 3da899565 |
hex | 255da6b1c |
10030312220 has 12 divisors (see below), whose sum is σ = 21063655704. Its totient is φ = 4012124880.
The previous prime is 10030312219. The next prime is 10030312261. The reversal of 10030312220 is 2221303001.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 10030312195 and 10030312204.
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, 250757786 + ... + 250757825.
It is an arithmetic number, because the mean of its divisors is an integer number (1755304642).
Almost surely, 210030312220 is an apocalyptic number.
10030312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
10030312220 is an abundant number, since it is smaller than the sum of its proper divisors (11033343484).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10030312220 is a wasteful number, since it uses less digits than its factorization.
10030312220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 501515620 (or 501515618 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
Adding to 10030312220 its reverse (2221303001), we get a palindrome (12251615221).
The spelling of 10030312220 in words is "ten billion, thirty million, three hundred twelve thousand, two hundred twenty".
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