Base | Representation |
---|---|
bin | 11001111010111000… |
… | …110001010000100000 |
3 | 2122211121212222202202 |
4 | 121322320301100200 |
5 | 423444331142302 |
6 | 20441405432332 |
7 | 2003455616525 |
oct | 317270612040 |
9 | 78747788682 |
10 | 27831505952 |
11 | 10892183398 |
12 | 548886b6a8 |
13 | 2817045023 |
14 | 14c044d14c |
15 | acd582202 |
hex | 67ae31420 |
27831505952 has 48 divisors (see below), whose sum is σ = 55049676192. Its totient is φ = 13850757120.
The previous prime is 27831505951. The next prime is 27831505973. The reversal of 27831505952 is 25950513872.
It is a super-2 number, since 2×278315059522 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 27831505897 and 27831505906.
It is not an unprimeable number, because it can be changed into a prime (27831505951) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15367127 + ... + 15368937.
It is an arithmetic number, because the mean of its divisors is an integer number (1146868254).
Almost surely, 227831505952 is an apocalyptic number.
It is an amenable number.
27831505952 is a deficient number, since it is larger than the sum of its proper divisors (27218170240).
27831505952 is a wasteful number, since it uses less digits than its factorization.
27831505952 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3801 (or 3793 counting only the distinct ones).
The product of its (nonzero) digits is 756000, while the sum is 47.
The spelling of 27831505952 in words is "twenty-seven billion, eight hundred thirty-one million, five hundred five thousand, nine hundred fifty-two".
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