Base | Representation |
---|---|
bin | 11010100101011011… |
… | …100100001111100001 |
3 | 2201200100222000000010 |
4 | 122211123210033201 |
5 | 431430042131003 |
6 | 21040304115133 |
7 | 2030243540466 |
oct | 324533441741 |
9 | 81610860003 |
10 | 28545270753 |
11 | 1111907445a |
12 | 5647905aa9 |
13 | 28cbb9376c |
14 | 154b16b66d |
15 | b21073003 |
hex | 6a56e43e1 |
28545270753 has 16 divisors (see below), whose sum is σ = 38508993536. Its totient is φ = 18806625360.
The previous prime is 28545270709. The next prime is 28545270773. The reversal of 28545270753 is 35707254582.
It is not a de Polignac number, because 28545270753 - 213 = 28545262561 is a prime.
It is a super-3 number, since 3×285452707533 (a number of 32 digits) contains 333 as substring.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (28545270773) 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, 55638 + ... + 245328.
It is an arithmetic number, because the mean of its divisors is an integer number (2406812096).
Almost surely, 228545270753 is an apocalyptic number.
It is an amenable number.
28545270753 is a deficient number, since it is larger than the sum of its proper divisors (9963722783).
28545270753 is a wasteful number, since it uses less digits than its factorization.
28545270753 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 190284.
The product of its (nonzero) digits is 2352000, while the sum is 48.
The spelling of 28545270753 in words is "twenty-eight billion, five hundred forty-five million, two hundred seventy thousand, seven hundred fifty-three".
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