Base | Representation |
---|---|
bin | 10011001101011101… |
… | …111011110101011101 |
3 | 1222020112102111021111 |
4 | 103031131323311131 |
5 | 314221010430400 |
6 | 13250445102021 |
7 | 1330104665356 |
oct | 231535736535 |
9 | 58215374244 |
10 | 20627045725 |
11 | 882547a830 |
12 | 3bb7b57911 |
13 | 1c39582900 |
14 | dd96acd2d |
15 | 80ad2c3ba |
hex | 4cd77bd5d |
20627045725 has 108 divisors (see below), whose sum is σ = 31622663520. Its totient is φ = 13229673600.
The previous prime is 20627045689. The next prime is 20627045737. The reversal of 20627045725 is 52754072602.
It is not a de Polignac number, because 20627045725 - 233 = 12037111133 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 24584856 + ... + 24585694.
It is an arithmetic number, because the mean of its divisors is an integer number (292802440).
Almost surely, 220627045725 is an apocalyptic number.
20627045725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
20627045725 is a deficient number, since it is larger than the sum of its proper divisors (10995617795).
20627045725 is a wasteful number, since it uses less digits than its factorization.
20627045725 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 932 (or 891 counting only the distinct ones).
The product of its (nonzero) digits is 235200, while the sum is 40.
The spelling of 20627045725 in words is "twenty billion, six hundred twenty-seven million, forty-five thousand, seven hundred twenty-five".
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