Base | Representation |
---|---|
bin | 1011101010100000… |
… | …0001110000010101 |
3 | 22002012122002011122 |
4 | 2322220001300111 |
5 | 22403022231000 |
6 | 1234405213325 |
7 | 140406346412 |
oct | 27250016025 |
9 | 8065562148 |
10 | 3131055125 |
11 | 1367443070 |
12 | 734701245 |
13 | 3ab8ac353 |
14 | 219b9d109 |
15 | 134d30085 |
hex | baa01c15 |
3131055125 has 32 divisors (see below), whose sum is σ = 4487184000. Its totient is φ = 2157264000.
The previous prime is 3131055091. The next prime is 3131055127. The reversal of 3131055125 is 5215501313.
It is a happy number.
It is not a de Polignac number, because 3131055125 - 28 = 3131054869 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 3131055094 and 3131055103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3131055127) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33800 + ... + 86049.
It is an arithmetic number, because the mean of its divisors is an integer number (140224500).
Almost surely, 23131055125 is an apocalyptic number.
It is an amenable number.
3131055125 is a deficient number, since it is larger than the sum of its proper divisors (1356128875).
3131055125 is a wasteful number, since it uses less digits than its factorization.
3131055125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 119894 (or 119884 counting only the distinct ones).
The product of its (nonzero) digits is 2250, while the sum is 26.
The square root of 3131055125 is about 55955.8319123217. The cubic root of 3131055125 is about 1462.9525421574.
Adding to 3131055125 its reverse (5215501313), we get a palindrome (8346556438).
The spelling of 3131055125 in words is "three billion, one hundred thirty-one million, fifty-five thousand, one hundred twenty-five".
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