Base | Representation |
---|---|
bin | 11010110101000011… |
… | …001011100100010010 |
3 | 2202100122001011022210 |
4 | 122311003023210102 |
5 | 432444133014212 |
6 | 21122304412550 |
7 | 2036605061160 |
oct | 326503134422 |
9 | 82318034283 |
10 | 28807313682 |
11 | 11242a83164 |
12 | 56bb617156 |
13 | 2941261854 |
14 | 1573ca0230 |
15 | b3908553c |
hex | 6b50cb912 |
28807313682 has 32 divisors (see below), whose sum is σ = 65850319872. Its totient is φ = 8230032144.
The previous prime is 28807313653. The next prime is 28807313693. The reversal of 28807313682 is 28631370882.
It is a super-2 number, since 2×288073136822 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1049173 + ... + 1076279.
It is an arithmetic number, because the mean of its divisors is an integer number (2057822496).
Almost surely, 228807313682 is an apocalyptic number.
28807313682 is an abundant number, since it is smaller than the sum of its proper divisors (37043006190).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28807313682 is a wasteful number, since it uses less digits than its factorization.
28807313682 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52422.
The product of its (nonzero) digits is 774144, while the sum is 48.
The spelling of 28807313682 in words is "twenty-eight billion, eight hundred seven million, three hundred thirteen thousand, six hundred eighty-two".
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