Base | Representation |
---|---|
bin | 101100011010011001… |
… | …000000110100000110 |
3 | 11120002102021011102000 |
4 | 230122121000310012 |
5 | 1240130433423211 |
6 | 33523550330130 |
7 | 3305511152466 |
oct | 543231006406 |
9 | 146072234360 |
10 | 47687404806 |
11 | 1925132a058 |
12 | 92aa4b9946 |
13 | 465c9079c2 |
14 | 2445543ba6 |
15 | 1391836656 |
hex | b1a640d06 |
47687404806 has 24 divisors (see below), whose sum is σ = 105975576840. Its totient is φ = 15895266696.
The previous prime is 47687404777. The next prime is 47687404829. The reversal of 47687404806 is 60840478674.
47687404806 is a `hidden beast` number, since 47 + 6 + 87 + 40 + 480 + 6 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1589860 + ... + 1619576.
It is an arithmetic number, because the mean of its divisors is an integer number (4415649035).
Almost surely, 247687404806 is an apocalyptic number.
47687404806 is an abundant number, since it is smaller than the sum of its proper divisors (58288172034).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47687404806 is an frugal number, since it uses more digits than its factorization.
47687404806 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59445 (or 29722 counting only the distinct ones).
The product of its (nonzero) digits is 7225344, while the sum is 54.
Multiplying 47687404806 by its sum of digits (54), we get a square (2575119859524 = 16047182).
47687404806 divided by its sum of digits (54) gives a square (883100089 = 297172).
The spelling of 47687404806 in words is "forty-seven billion, six hundred eighty-seven million, four hundred four thousand, eight hundred six".
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