Base | Representation |
---|---|
bin | 1011010001100… |
… | …1101100000101 |
3 | 10021222122020202 |
4 | 2310121230011 |
5 | 44101304031 |
6 | 4405340245 |
7 | 1112653022 |
oct | 264315405 |
9 | 107878222 |
10 | 47291141 |
11 | 24770597 |
12 | 13a07685 |
13 | 9a4a431 |
14 | 63d0549 |
15 | 42422cb |
hex | 2d19b05 |
47291141 has 6 divisors (see below), whose sum is σ = 48960210. Its totient is φ = 45624656.
The previous prime is 47291113. The next prime is 47291149. The reversal of 47291141 is 14119274.
It can be written as a sum of positive squares in 3 ways, for example, as 13535041 + 33756100 = 3679^2 + 5810^2 .
It is not a de Polignac number, because 47291141 - 26 = 47291077 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (29).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47291149) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36395 + ... + 37671.
It is an arithmetic number, because the mean of its divisors is an integer number (8160035).
Almost surely, 247291141 is an apocalyptic number.
It is an amenable number.
47291141 is a deficient number, since it is larger than the sum of its proper divisors (1669069).
47291141 is an frugal number, since it uses more digits than its factorization.
47291141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2583 (or 1306 counting only the distinct ones).
The product of its digits is 2016, while the sum is 29.
The square root of 47291141 is about 6876.8554587108. The cubic root of 47291141 is about 361.6262358149.
Multiplying 47291141 by its sum of digits (29), we get a square (1371443089 = 370332).
47291141 divided by its sum of digits (29) gives a square (1630729 = 12772).
The spelling of 47291141 in words is "forty-seven million, two hundred ninety-one thousand, one hundred forty-one".
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