Base | Representation |
---|---|
bin | 1011011011100… |
… | …1110011111101 |
3 | 10100012221221000 |
4 | 2312321303331 |
5 | 44233301010 |
6 | 4431400513 |
7 | 1121354121 |
oct | 266716375 |
9 | 110187830 |
10 | 47947005 |
11 | 25079327 |
12 | 14083139 |
13 | 9c19b12 |
14 | 6521581 |
15 | 43217c0 |
hex | 2db9cfd |
47947005 has 64 divisors (see below), whose sum is σ = 90835200. Its totient is φ = 23950080.
The previous prime is 47946991. The next prime is 47947027. The reversal of 47947005 is 50074974.
It is a happy number.
It is not a de Polignac number, because 47947005 - 214 = 47930621 is a prime.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 144690 + ... + 145020.
It is an arithmetic number, because the mean of its divisors is an integer number (1419300).
Almost surely, 247947005 is an apocalyptic number.
47947005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.
It is an amenable number.
47947005 is a deficient number, since it is larger than the sum of its proper divisors (42888195).
47947005 is a wasteful number, since it uses less digits than its factorization.
47947005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 411 (or 405 counting only the distinct ones).
The product of its (nonzero) digits is 35280, while the sum is 36.
The square root of 47947005 is about 6924.3775893578. The cubic root of 47947005 is about 363.2903216673.
The spelling of 47947005 in words is "forty-seven million, nine hundred forty-seven thousand, five".
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