Base | Representation |
---|---|
bin | 1011010000011… |
… | …1010101001110 |
3 | 10021211211002220 |
4 | 2310013111032 |
5 | 44041402300 |
6 | 4404000210 |
7 | 1112220555 |
oct | 264072516 |
9 | 107754086 |
10 | 47215950 |
11 | 2471a051 |
12 | 13990066 |
13 | 9a22142 |
14 | 63b0d9c |
15 | 4229da0 |
hex | 2d0754e |
47215950 has 48 divisors (see below), whose sum is σ = 123265920. Its totient is φ = 11927520.
The previous prime is 47215939. The next prime is 47215957. The reversal of 47215950 is 5951274.
47215950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47215957) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5434 + ... + 11133.
It is an arithmetic number, because the mean of its divisors is an integer number (2568040).
Almost surely, 247215950 is an apocalyptic number.
47215950 is an abundant number, since it is smaller than the sum of its proper divisors (76049970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47215950 is a wasteful number, since it uses less digits than its factorization.
47215950 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16601 (or 16596 counting only the distinct ones).
The product of its (nonzero) digits is 12600, while the sum is 33.
The square root of 47215950 is about 6871.3863230064. The cubic root of 47215950 is about 361.4344771236.
The spelling of 47215950 in words is "forty-seven million, two hundred fifteen thousand, nine hundred fifty".
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