Base | Representation |
---|---|
bin | 1011101010011111… |
… | …1100100111100101 |
3 | 22002012121000022101 |
4 | 2322213330213211 |
5 | 22403021042320 |
6 | 1234404532101 |
7 | 140406231154 |
oct | 27247744745 |
9 | 8065530271 |
10 | 3131034085 |
11 | 1367429283 |
12 | 7346b1031 |
13 | 3ab8a28ba |
14 | 219b9559b |
15 | 134d28c0a |
hex | ba9fc9e5 |
3131034085 has 16 divisors (see below), whose sum is σ = 3851073072. Its totient is φ = 2442342400.
The previous prime is 3131034083. The next prime is 3131034113. The reversal of 3131034085 is 5804301313.
It can be written as a sum of positive squares in 8 ways, for example, as 184932801 + 2946101284 = 13599^2 + 54278^2 .
It is not a de Polignac number, because 3131034085 - 21 = 3131034083 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 (3131034083) 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, 497277 + ... + 503533.
It is an arithmetic number, because the mean of its divisors is an integer number (240692067).
Almost surely, 23131034085 is an apocalyptic number.
It is an amenable number.
3131034085 is a deficient number, since it is larger than the sum of its proper divisors (720038987).
3131034085 is a wasteful number, since it uses less digits than its factorization.
3131034085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8744.
The product of its (nonzero) digits is 4320, while the sum is 28.
The square root of 3131034085 is about 55955.6439065801. The cubic root of 3131034085 is about 1462.9492652439.
Adding to 3131034085 its reverse (5804301313), we get a palindrome (8935335398).
The spelling of 3131034085 in words is "three billion, one hundred thirty-one million, thirty-four thousand, eighty-five".
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