Base | Representation |
---|---|
bin | 1011011100001… |
… | …1000101110111 |
3 | 10100021220001210 |
4 | 2313003011313 |
5 | 44241010030 |
6 | 4432252503 |
7 | 1121603001 |
oct | 267030567 |
9 | 110256053 |
10 | 47985015 |
11 | 250a4941 |
12 | 140a1133 |
13 | 9c31200 |
14 | 6531371 |
15 | 432cbb0 |
hex | 2dc3177 |
47985015 has 48 divisors (see below), whose sum is σ = 86856192. Its totient is φ = 22568832.
The previous prime is 47984971. The next prime is 47985019. The reversal of 47985015 is 51058974.
It is not a de Polignac number, because 47985015 - 27 = 47984887 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47985019) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57894 + ... + 58716.
It is an arithmetic number, because the mean of its divisors is an integer number (1809504).
Almost surely, 247985015 is an apocalyptic number.
47985015 is a deficient number, since it is larger than the sum of its proper divisors (38871177).
47985015 is a wasteful number, since it uses less digits than its factorization.
47985015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 880 (or 867 counting only the distinct ones).
The product of its (nonzero) digits is 50400, while the sum is 39.
The square root of 47985015 is about 6927.1216966356. The cubic root of 47985015 is about 363.3862958079.
The spelling of 47985015 in words is "forty-seven million, nine hundred eighty-five thousand, fifteen".
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