Base | Representation |
---|---|
bin | 11100111111011111… |
… | …111100100110000111 |
3 | 2222100111210110022202 |
4 | 130333133330212013 |
5 | 1002223302012333 |
6 | 22145002145115 |
7 | 2151301400123 |
oct | 347737744607 |
9 | 88314713282 |
10 | 31130110343 |
11 | 12225154722 |
12 | 60494b219b |
13 | 2c21559047 |
14 | 1714584583 |
15 | c22e5b5e8 |
hex | 73f7fc987 |
31130110343 has 8 divisors (see below), whose sum is σ = 31436090400. Its totient is φ = 30824202528.
The previous prime is 31130110309. The next prime is 31130110421. The reversal of 31130110343 is 34301103113.
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 31130110343 - 222 = 31125916039 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 (31130100343) 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, 1359473 + ... + 1382181.
It is an arithmetic number, because the mean of its divisors is an integer number (3929511300).
Almost surely, 231130110343 is an apocalyptic number.
31130110343 is a deficient number, since it is larger than the sum of its proper divisors (305980057).
31130110343 is a wasteful number, since it uses less digits than its factorization.
31130110343 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36121.
The product of its (nonzero) digits is 324, while the sum is 20.
Adding to 31130110343 its reverse (34301103113), we get a palindrome (65431213456).
The spelling of 31130110343 in words is "thirty-one billion, one hundred thirty million, one hundred ten thousand, three hundred forty-three".
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