Base | Representation |
---|---|
bin | 1111001001000010… |
… | …00011101010000011 |
3 | 202222111211202210021 |
4 | 13210201003222003 |
5 | 113121440311100 |
6 | 3422341114311 |
7 | 405303661645 |
oct | 74441035203 |
9 | 22874752707 |
10 | 8128838275 |
11 | 34a1576568 |
12 | 16aa3b8997 |
13 | 9c7142b9c |
14 | 571844895 |
15 | 328999a1a |
hex | 1e4843a83 |
8128838275 has 6 divisors (see below), whose sum is σ = 10079759492. Its totient is φ = 6503070600.
The previous prime is 8128838261. The next prime is 8128838287. The reversal of 8128838275 is 5728388218.
It is not a de Polignac number, because 8128838275 - 227 = 7994620547 is a prime.
It is a super-2 number, since 2×81288382752 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 162576741 + ... + 162576790.
Almost surely, 28128838275 is an apocalyptic number.
8128838275 is a deficient number, since it is larger than the sum of its proper divisors (1950921217).
8128838275 is a wasteful number, since it uses less digits than its factorization.
8128838275 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 325153541 (or 325153536 counting only the distinct ones).
The product of its digits is 1720320, while the sum is 52.
The square root of 8128838275 is about 90160.0702916762. The cubic root of 8128838275 is about 2010.6793966618.
The spelling of 8128838275 in words is "eight billion, one hundred twenty-eight million, eight hundred thirty-eight thousand, two hundred seventy-five".
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