Base | Representation |
---|---|
bin | 11101010010000011… |
… | …011100010011001010 |
3 | 10000011012112212111022 |
4 | 131102003130103022 |
5 | 1003342444431010 |
6 | 22235522232442 |
7 | 2162101351112 |
oct | 352203342312 |
9 | 100135485438 |
10 | 31441405130 |
11 | 12374943043 |
12 | 61157b5722 |
13 | 2c70bacb45 |
14 | 1743a58042 |
15 | c4044bd55 |
hex | 7520dc4ca |
31441405130 has 32 divisors (see below), whose sum is σ = 58001529600. Its totient is φ = 12267732672.
The previous prime is 31441405117. The next prime is 31441405133. The reversal of 31441405130 is 3150414413.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 31441405130.
It is not an unprimeable number, because it can be changed into a prime (31441405133) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174185 + ... + 305324.
It is an arithmetic number, because the mean of its divisors is an integer number (1812547800).
Almost surely, 231441405130 is an apocalyptic number.
31441405130 is a deficient number, since it is larger than the sum of its proper divisors (26560124470).
31441405130 is a wasteful number, since it uses less digits than its factorization.
31441405130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 479678.
The product of its (nonzero) digits is 2880, while the sum is 26.
Adding to 31441405130 its reverse (3150414413), we get a palindrome (34591819543).
The spelling of 31441405130 in words is "thirty-one billion, four hundred forty-one million, four hundred five thousand, one hundred thirty".
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