Base | Representation |
---|---|
bin | 11010100100011101… |
… | …110001101110100001 |
3 | 2201122020111001221110 |
4 | 122210131301232201 |
5 | 431411420314212 |
6 | 21034525013533 |
7 | 2026656056052 |
oct | 324435615641 |
9 | 81566431843 |
10 | 28529073057 |
11 | 1110aa10931 |
12 | 56423b42a9 |
13 | 28c8711c24 |
14 | 1548d52729 |
15 | b1e923a3c |
hex | 6a4771ba1 |
28529073057 has 16 divisors (see below), whose sum is σ = 38402760960. Its totient is φ = 18837462672.
The previous prime is 28529073029. The next prime is 28529073119. The reversal of 28529073057 is 75037092582.
It is a happy number.
It is a de Polignac number, because none of the positive numbers 2k-28529073057 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 28529072997 and 28529073015.
It is not an unprimeable number, because it can be changed into a prime (28529053057) 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, 2254494 + ... + 2267112.
It is an arithmetic number, because the mean of its divisors is an integer number (2400172560).
Almost surely, 228529073057 is an apocalyptic number.
It is an amenable number.
28529073057 is a deficient number, since it is larger than the sum of its proper divisors (9873687903).
28529073057 is a wasteful number, since it uses less digits than its factorization.
28529073057 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19772.
The product of its (nonzero) digits is 1058400, while the sum is 48.
The spelling of 28529073057 in words is "twenty-eight billion, five hundred twenty-nine million, seventy-three thousand, fifty-seven".
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