Base | Representation |
---|---|
bin | 1011010101101… |
… | …1100111111101 |
3 | 10022111100201102 |
4 | 2311123213331 |
5 | 44133424323 |
6 | 4415222445 |
7 | 1115156300 |
oct | 265334775 |
9 | 108440642 |
10 | 47561213 |
11 | 24935497 |
12 | 13b17a25 |
13 | 9b1333b |
14 | 6460b37 |
15 | 4297328 |
hex | 2d5b9fd |
47561213 has 12 divisors (see below), whose sum is σ = 55732320. Its totient is φ = 40467672.
The previous prime is 47561209. The next prime is 47561219. The reversal of 47561213 is 31216574.
It is not a de Polignac number, because 47561213 - 22 = 47561209 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47561219) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3320 + ... + 10302.
It is an arithmetic number, because the mean of its divisors is an integer number (4644360).
Almost surely, 247561213 is an apocalyptic number.
It is an amenable number.
47561213 is a deficient number, since it is larger than the sum of its proper divisors (8171107).
47561213 is a wasteful number, since it uses less digits than its factorization.
47561213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7136 (or 7129 counting only the distinct ones).
The product of its digits is 5040, while the sum is 29.
The square root of 47561213 is about 6896.4638040085. The cubic root of 47561213 is about 362.3133256855.
Adding to 47561213 its reverse (31216574), we get a palindrome (78777787).
It can be divided in two parts, 47561 and 213, that added together give a palindrome (47774).
The spelling of 47561213 in words is "forty-seven million, five hundred sixty-one thousand, two hundred thirteen".
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