Base | Representation |
---|---|
bin | 1011010100100… |
… | …1000001110101 |
3 | 10022100111020101 |
4 | 2311021001311 |
5 | 44124010140 |
6 | 4413434101 |
7 | 1114421236 |
oct | 265110165 |
9 | 108314211 |
10 | 47485045 |
11 | 24893243 |
12 | 13a9b931 |
13 | 9ab777a |
14 | 644108d |
15 | 427e99a |
hex | 2d49075 |
47485045 has 8 divisors (see below), whose sum is σ = 57178296. Its totient is φ = 37857216.
The previous prime is 47485043. The next prime is 47485057. The reversal of 47485045 is 54058474.
It can be written as a sum of positive squares in 4 ways, for example, as 26306641 + 21178404 = 5129^2 + 4602^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 47485045 - 21 = 47485043 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 47484995 and 47485013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47485043) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14742 + ... + 17671.
It is an arithmetic number, because the mean of its divisors is an integer number (7147287).
Almost surely, 247485045 is an apocalyptic number.
It is an amenable number.
47485045 is a deficient number, since it is larger than the sum of its proper divisors (9693251).
47485045 is a wasteful number, since it uses less digits than its factorization.
47485045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32711.
The product of its (nonzero) digits is 89600, while the sum is 37.
The square root of 47485045 is about 6890.9393409027. The cubic root of 47485045 is about 362.1198106722.
The spelling of 47485045 in words is "forty-seven million, four hundred eighty-five thousand, forty-five".
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