Base | Representation |
---|---|
bin | 11100111010010100… |
… | …011111011010001010 |
3 | 2222010110022000201202 |
4 | 130322110133122022 |
5 | 1002034031034010 |
6 | 22132215544202 |
7 | 2146165011605 |
oct | 347224373212 |
9 | 88113260652 |
10 | 31043221130 |
11 | 121900a8559 |
12 | 602438b062 |
13 | 2c09555ccc |
14 | 1706c0733c |
15 | c1a4e66a5 |
hex | 73a51f68a |
31043221130 has 16 divisors (see below), whose sum is σ = 57680308224. Its totient is φ = 12016730640.
The previous prime is 31043221091. The next prime is 31043221151. The reversal of 31043221130 is 3112234013.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50069402 + ... + 50070021.
It is an arithmetic number, because the mean of its divisors is an integer number (3605019264).
Almost surely, 231043221130 is an apocalyptic number.
31043221130 is a deficient number, since it is larger than the sum of its proper divisors (26637087094).
31043221130 is a wasteful number, since it uses less digits than its factorization.
31043221130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 100139461.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 31043221130 its reverse (3112234013), we get a palindrome (34155455143).
The spelling of 31043221130 in words is "thirty-one billion, forty-three million, two hundred twenty-one thousand, one hundred thirty".
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