Base | Representation |
---|---|
bin | 11101000101100101… |
… | …000010111000101011 |
3 | 2222121121201120201101 |
4 | 131011211002320223 |
5 | 1002430410010443 |
6 | 22203044302231 |
7 | 2153650361434 |
oct | 350545027053 |
9 | 88547646641 |
10 | 31232110123 |
11 | 12277791665 |
12 | 60776a1977 |
13 | 2c3971cb46 |
14 | 1723d3648b |
15 | c2bda884d |
hex | 745942e2b |
31232110123 has 8 divisors (see below), whose sum is σ = 31427360000. Its totient is φ = 31037243688.
The previous prime is 31232110121. The next prime is 31232110139. The reversal of 31232110123 is 32101123213.
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 31232110123 - 21 = 31232110121 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 31232110123.
It is not an unprimeable number, because it can be changed into a prime (31232110121) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68428 + ... + 259126.
It is an arithmetic number, because the mean of its divisors is an integer number (3928420000).
Almost surely, 231232110123 is an apocalyptic number.
31232110123 is a deficient number, since it is larger than the sum of its proper divisors (195249877).
31232110123 is a wasteful number, since it uses less digits than its factorization.
31232110123 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 191721.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 31232110123 its reverse (32101123213), we get a palindrome (63333233336).
The spelling of 31232110123 in words is "thirty-one billion, two hundred thirty-two million, one hundred ten thousand, one hundred twenty-three".
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