Base | Representation |
---|---|
bin | 101011110010001101… |
… | …000010001000000000 |
3 | 11111100102120210002122 |
4 | 223302031002020000 |
5 | 1232240333111213 |
6 | 33333023303412 |
7 | 3253013254334 |
oct | 536215021000 |
9 | 144312523078 |
10 | 47013175808 |
11 | 18a35791905 |
12 | 914074ab68 |
13 | 458301c731 |
14 | 23bdb977c4 |
15 | 1352554d08 |
hex | af2342200 |
47013175808 has 40 divisors (see below), whose sum is σ = 94081729500. Its totient is φ = 23469752320.
The previous prime is 47013175771. The next prime is 47013175813. The reversal of 47013175808 is 80857131074.
It can be written as a sum of positive squares in 2 ways, for example, as 45331519744 + 1681656064 = 212912^2 + 41008^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256568 + ... + 399816.
Almost surely, 247013175808 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 47013175808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47040864750).
47013175808 is an abundant number, since it is smaller than the sum of its proper divisors (47068553692).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47013175808 is an equidigital number, since it uses as much as digits as its factorization.
47013175808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 143908 (or 143892 counting only the distinct ones).
The product of its (nonzero) digits is 188160, while the sum is 44.
The spelling of 47013175808 in words is "forty-seven billion, thirteen million, one hundred seventy-five thousand, eight hundred eight".
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