Base | Representation |
---|---|
bin | 1011001101101… |
… | …0001011101111 |
3 | 10021111102102202 |
4 | 2303122023233 |
5 | 44014443043 |
6 | 4400012115 |
7 | 1110520454 |
oct | 263321357 |
9 | 107442382 |
10 | 47031023 |
11 | 24603116 |
12 | 1390103b |
13 | 9988c10 |
14 | 636382b |
15 | 41e01b8 |
hex | 2cda2ef |
47031023 has 8 divisors (see below), whose sum is σ = 53314800. Its totient is φ = 41128128.
The previous prime is 47031007. The next prime is 47031029. The reversal of 47031023 is 32013074.
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 47031023 - 24 = 47031007 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 47030986 and 47031004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47031029) 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, 94958 + ... + 95451.
It is an arithmetic number, because the mean of its divisors is an integer number (6664350).
Almost surely, 247031023 is an apocalyptic number.
47031023 is a deficient number, since it is larger than the sum of its proper divisors (6283777).
47031023 is a wasteful number, since it uses less digits than its factorization.
47031023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 190441.
The product of its (nonzero) digits is 504, while the sum is 20.
The square root of 47031023 is about 6857.9168119772. The cubic root of 47031023 is about 360.9619924023.
Adding to 47031023 its reverse (32013074), we get a palindrome (79044097).
The spelling of 47031023 in words is "forty-seven million, thirty-one thousand, twenty-three".
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