Base | Representation |
---|---|
bin | 111011010010010000010… |
… | …1111010001111101110101 |
3 | 1001211221200020211222220211 |
4 | 1312210200233101331311 |
5 | 2031444303132211111 |
6 | 25155104140425421 |
7 | 1500452366111110 |
oct | 166444057217565 |
9 | 31757606758824 |
10 | 8148102225781 |
11 | 2661655316541 |
12 | ab71a6b48271 |
13 | 471493c3bb9b |
14 | 202527d85577 |
15 | e1e3e126521 |
hex | 76920bd1f75 |
8148102225781 has 8 divisors (see below), whose sum is σ = 9312279919040. Its totient is φ = 6983965304928.
The previous prime is 8148102225733. The next prime is 8148102225799. The reversal of 8148102225781 is 1875222018418.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 8148102225781 - 29 = 8148102225269 is a prime.
It is a super-2 number, since 2×81481022257812 (a number of 27 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8148102225281) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9763656 + ... + 10565281.
It is an arithmetic number, because the mean of its divisors is an integer number (1164034989880).
Almost surely, 28148102225781 is an apocalyptic number.
It is an amenable number.
8148102225781 is a deficient number, since it is larger than the sum of its proper divisors (1164177693259).
8148102225781 is a wasteful number, since it uses less digits than its factorization.
8148102225781 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20386203.
The product of its (nonzero) digits is 573440, while the sum is 49.
The spelling of 8148102225781 in words is "eight trillion, one hundred forty-eight billion, one hundred two million, two hundred twenty-five thousand, seven hundred eighty-one".
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