Base | Representation |
---|---|
bin | 100100101110100010… |
… | …1100000001001110000 |
3 | 21112120122221210002221 |
4 | 1021131011200021300 |
5 | 2243012002303312 |
6 | 100122150050424 |
7 | 5461333404340 |
oct | 1113505401160 |
9 | 245518853087 |
10 | 78871134832 |
11 | 304a3776a66 |
12 | 13351949a14 |
13 | 758c2b8869 |
14 | 3b62c84d20 |
15 | 20b9335207 |
hex | 125d160270 |
78871134832 has 20 divisors (see below), whose sum is σ = 174643227376. Its totient is φ = 33801914880.
The previous prime is 78871134829. The next prime is 78871134833. The reversal of 78871134832 is 23843117887.
It is a self number, because there is not a number n which added to its sum of digits gives 78871134832.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (78871134833) 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, 352103169 + ... + 352103392.
Almost surely, 278871134832 is an apocalyptic number.
It is an amenable number.
78871134832 is an abundant number, since it is smaller than the sum of its proper divisors (95772092544).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78871134832 is a wasteful number, since it uses less digits than its factorization.
78871134832 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 704206576 (or 704206570 counting only the distinct ones).
The product of its digits is 1806336, while the sum is 52.
It can be divided in two parts, 788711 and 34832, that added together give a 7-th power (823543 = 77).
The spelling of 78871134832 in words is "seventy-eight billion, eight hundred seventy-one million, one hundred thirty-four thousand, eight hundred thirty-two".
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