Base | Representation |
---|---|
bin | 1011010010111… |
… | …0010010000011 |
3 | 10022010220221211 |
4 | 2310232102003 |
5 | 44112003431 |
6 | 4411230551 |
7 | 1113453652 |
oct | 264562203 |
9 | 108126854 |
10 | 47375491 |
11 | 248189a9 |
12 | 13a48457 |
13 | 9a79947 |
14 | 6413199 |
15 | 425c2b1 |
hex | 2d2e483 |
47375491 has 2 divisors, whose sum is σ = 47375492. Its totient is φ = 47375490.
The previous prime is 47375453. The next prime is 47375507. The reversal of 47375491 is 19457374.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 47375491 - 217 = 47244419 is a prime.
It is not a weakly prime, because it can be changed into another prime (47375401) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23687745 + 23687746.
It is an arithmetic number, because the mean of its divisors is an integer number (23687746).
Almost surely, 247375491 is an apocalyptic number.
47375491 is a deficient number, since it is larger than the sum of its proper divisors (1).
47375491 is an equidigital number, since it uses as much as digits as its factorization.
47375491 is an evil number, because the sum of its binary digits is even.
The product of its digits is 105840, while the sum is 40.
The square root of 47375491 is about 6882.9856167219. The cubic root of 47375491 is about 361.8411108409.
The spelling of 47375491 in words is "forty-seven million, three hundred seventy-five thousand, four hundred ninety-one".
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