Base | Representation |
---|---|
bin | 101011110011010010… |
… | …011110101011110011 |
3 | 11111101200211200112202 |
4 | 223303102132223303 |
5 | 1232310013140343 |
6 | 33334513413415 |
7 | 3253324066025 |
oct | 536322365363 |
9 | 144350750482 |
10 | 47031380723 |
11 | 18a44a96498 |
12 | 914686a26b |
13 | 4586a24a82 |
14 | 23c2376015 |
15 | 1353e4ddb8 |
hex | af349eaf3 |
47031380723 has 16 divisors (see below), whose sum is σ = 48152724480. Its totient is φ = 45924412800.
The previous prime is 47031380687. The next prime is 47031380749. The reversal of 47031380723 is 32708313074.
It is a cyclic number.
It is not a de Polignac number, because 47031380723 - 224 = 47014603507 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (47031380783) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4248011 + ... + 4259067.
It is an arithmetic number, because the mean of its divisors is an integer number (3009545280).
Almost surely, 247031380723 is an apocalyptic number.
47031380723 is a deficient number, since it is larger than the sum of its proper divisors (1121343757).
47031380723 is a wasteful number, since it uses less digits than its factorization.
47031380723 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11698.
The product of its (nonzero) digits is 84672, while the sum is 38.
Adding to 47031380723 its reverse (32708313074), we get a palindrome (79739693797).
The spelling of 47031380723 in words is "forty-seven billion, thirty-one million, three hundred eighty thousand, seven hundred twenty-three".
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