Base | Representation |
---|---|
bin | 11101000100111111… |
… | …101111001010111001 |
3 | 2222120221022200222010 |
4 | 131010333233022321 |
5 | 1002420404030131 |
6 | 22202054520133 |
7 | 2153501266200 |
oct | 350477571271 |
9 | 88527280863 |
10 | 31222330041 |
11 | 12272211751 |
12 | 6074366049 |
13 | 2c376a7406 |
14 | 172290c237 |
15 | c2b0c5b46 |
hex | 744fef2b9 |
31222330041 has 24 divisors (see below), whose sum is σ = 48694062144. Its totient is φ = 17742745440.
The previous prime is 31222330037. The next prime is 31222330049. The reversal of 31222330041 is 14003322213.
It is not a de Polignac number, because 31222330041 - 22 = 31222330037 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is not an unprimeable number, because it can be changed into a prime (31222330049) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 560125 + ... + 613338.
It is an arithmetic number, because the mean of its divisors is an integer number (2028919256).
Almost surely, 231222330041 is an apocalyptic number.
It is an amenable number.
31222330041 is a deficient number, since it is larger than the sum of its proper divisors (17471732103).
31222330041 is a wasteful number, since it uses less digits than its factorization.
31222330041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1173661 (or 1173654 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 21.
Adding to 31222330041 its reverse (14003322213), we get a palindrome (45225652254).
The spelling of 31222330041 in words is "thirty-one billion, two hundred twenty-two million, three hundred thirty thousand, forty-one".
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