Base | Representation |
---|---|
bin | 11010001001100000… |
… | …000010111000000100 |
3 | 2200110201020021010010 |
4 | 122021200002320010 |
5 | 430000112322011 |
6 | 20522004430220 |
7 | 2012523602643 |
oct | 321140027004 |
9 | 80421207103 |
10 | 28076682756 |
11 | 109a8612351 |
12 | 55369a8370 |
13 | 2855a89265 |
14 | 1504c3135a |
15 | ae4d621a6 |
hex | 689802e04 |
28076682756 has 48 divisors (see below), whose sum is σ = 66501485568. Its totient is φ = 9217840800.
The previous prime is 28076682721. The next prime is 28076682817. The reversal of 28076682756 is 65728667082.
It is a happy number.
It is a super-2 number, since 2×280766827562 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 28076682696 and 28076682705.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 862431 + ... + 894393.
It is an arithmetic number, because the mean of its divisors is an integer number (1385447616).
Almost surely, 228076682756 is an apocalyptic number.
It is an amenable number.
28076682756 is an abundant number, since it is smaller than the sum of its proper divisors (38424802812).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28076682756 is a wasteful number, since it uses less digits than its factorization.
28076682756 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33072 (or 33070 counting only the distinct ones).
The product of its (nonzero) digits is 13547520, while the sum is 57.
The spelling of 28076682756 in words is "twenty-eight billion, seventy-six million, six hundred eighty-two thousand, seven hundred fifty-six".
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