Base | Representation |
---|---|
bin | 10010101010101010… |
… | …00110100110111101 |
3 | 221212102021110210110 |
4 | 21111111012212331 |
5 | 131011002430140 |
6 | 4334232100233 |
7 | 503225412522 |
oct | 112525064675 |
9 | 27772243713 |
10 | 10021530045 |
11 | 428298a93a |
12 | 1b38234679 |
13 | c392b8147 |
14 | 6b0d69149 |
15 | 3d9c12380 |
hex | 2555469bd |
10021530045 has 16 divisors (see below), whose sum is σ = 16037029440. Its totient is φ = 5343955584.
The previous prime is 10021530017. The next prime is 10021530049. The reversal of 10021530045 is 54003512001.
It is not a de Polignac number, because 10021530045 - 26 = 10021529981 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10021530049) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48817 + ... + 149753.
It is an arithmetic number, because the mean of its divisors is an integer number (1002314340).
Almost surely, 210021530045 is an apocalyptic number.
10021530045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
10021530045 is a deficient number, since it is larger than the sum of its proper divisors (6015499395).
10021530045 is a wasteful number, since it uses less digits than its factorization.
10021530045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 107564.
The product of its (nonzero) digits is 600, while the sum is 21.
The spelling of 10021530045 in words is "ten billion, twenty-one million, five hundred thirty thousand, forty-five".
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