Base | Representation |
---|---|
bin | 1011011011110… |
… | …0011111011100 |
3 | 10100020111222111 |
4 | 2312330133130 |
5 | 44234123410 |
6 | 4431523404 |
7 | 1121431120 |
oct | 266743734 |
9 | 110214874 |
10 | 47957980 |
11 | 250865a4 |
12 | 14089564 |
13 | 9c21b05 |
14 | 6525580 |
15 | 4324b8a |
hex | 2dbc7dc |
47957980 has 48 divisors (see below), whose sum is σ = 115496640. Its totient is φ = 16386048.
The previous prime is 47957971. The next prime is 47957993. The reversal of 47957980 is 8975974.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70924 + ... + 71596.
It is an arithmetic number, because the mean of its divisors is an integer number (2406180).
Almost surely, 247957980 is an apocalyptic number.
It is an amenable number.
47957980 is an abundant number, since it is smaller than the sum of its proper divisors (67538660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47957980 is a wasteful number, since it uses less digits than its factorization.
47957980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1198 (or 1196 counting only the distinct ones).
The product of its (nonzero) digits is 635040, while the sum is 49.
The square root of 47957980 is about 6925.1700340136. The cubic root of 47957980 is about 363.3180384288.
The spelling of 47957980 in words is "forty-seven million, nine hundred fifty-seven thousand, nine hundred eighty".
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