Base | Representation |
---|---|
bin | 11100111110011011… |
… | …010010000011011101 |
3 | 2222022020220221220112 |
4 | 130332123102003131 |
5 | 1002204200012201 |
6 | 22143120255405 |
7 | 2150662400636 |
oct | 347633220335 |
9 | 88266827815 |
10 | 31112110301 |
11 | 12215a7aa58 |
12 | 6043471565 |
13 | 2c1a8c602c |
14 | 171201a88d |
15 | c215a30bb |
hex | 73e6d20dd |
31112110301 has 4 divisors (see below), whose sum is σ = 31123220604. Its totient is φ = 31101000000.
The previous prime is 31112110283. The next prime is 31112110303. The reversal of 31112110301 is 10301121113.
It is a happy number.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 17719603225 + 13392507076 = 133115^2 + 115726^2 .
It is a cyclic number.
It is not a de Polignac number, because 31112110301 - 222 = 31107915997 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31112110303) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550950 + ... + 5556551.
It is an arithmetic number, because the mean of its divisors is an integer number (7780805151).
Almost surely, 231112110301 is an apocalyptic number.
It is an amenable number.
31112110301 is a deficient number, since it is larger than the sum of its proper divisors (11110303).
31112110301 is a wasteful number, since it uses less digits than its factorization.
31112110301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11110302.
The product of its (nonzero) digits is 18, while the sum is 14.
Adding to 31112110301 its reverse (10301121113), we get a palindrome (41413231414).
The spelling of 31112110301 in words is "thirty-one billion, one hundred twelve million, one hundred ten thousand, three hundred one".
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