Base | Representation |
---|---|
bin | 11010100111001000… |
… | …010001000111010101 |
3 | 2201202100120201021101 |
4 | 122213020101013111 |
5 | 432004341003401 |
6 | 21043202550101 |
7 | 2031041001346 |
oct | 324710210725 |
9 | 81670521241 |
10 | 28573766101 |
11 | 11133167431 |
12 | 5655368331 |
13 | 2904a5c90a |
14 | 1550c680cd |
15 | b23801101 |
hex | 6a72111d5 |
28573766101 has 4 divisors (see below), whose sum is σ = 28840810752. Its totient is φ = 28306721452.
The previous prime is 28573766099. The next prime is 28573766119. The reversal of 28573766101 is 10166737582.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 28573766101 - 21 = 28573766099 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28573766161) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133522165 + ... + 133522378.
It is an arithmetic number, because the mean of its divisors is an integer number (7210202688).
Almost surely, 228573766101 is an apocalyptic number.
It is an amenable number.
28573766101 is a deficient number, since it is larger than the sum of its proper divisors (267044651).
28573766101 is a wasteful number, since it uses less digits than its factorization.
28573766101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 267044650.
The product of its (nonzero) digits is 423360, while the sum is 46.
The spelling of 28573766101 in words is "twenty-eight billion, five hundred seventy-three million, seven hundred sixty-six thousand, one hundred one".
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