Base | Representation |
---|---|
bin | 1011010011001… |
… | …0110101111000 |
3 | 10022011212120120 |
4 | 2310302311320 |
5 | 44113103133 |
6 | 4411453240 |
7 | 1113562263 |
oct | 264626570 |
9 | 108155516 |
10 | 47394168 |
11 | 24830a38 |
12 | 13a57220 |
13 | 9a852b3 |
14 | 6419cda |
15 | 4262ab3 |
hex | 2d32d78 |
47394168 has 48 divisors (see below), whose sum is σ = 123894120. Its totient is φ = 15107136.
The previous prime is 47394163. The next prime is 47394173. The reversal of 47394168 is 86149374.
It is an interprime number because it is at equal distance from previous prime (47394163) and next prime (47394173).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47394161) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10830 + ... + 14562.
Almost surely, 247394168 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 47394168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61947060).
47394168 is an abundant number, since it is smaller than the sum of its proper divisors (76499952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47394168 is a wasteful number, since it uses less digits than its factorization.
47394168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3788 (or 3761 counting only the distinct ones).
The product of its digits is 145152, while the sum is 42.
The square root of 47394168 is about 6884.3422343750. The cubic root of 47394168 is about 361.8886545419. Note that the first 3 decimals are identical.
The spelling of 47394168 in words is "forty-seven million, three hundred ninety-four thousand, one hundred sixty-eight".
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