Base | Representation |
---|---|
bin | 1011101010100000… |
… | …0000100001111001 |
3 | 22002012121211021201 |
4 | 2322220000201321 |
5 | 22403022100410 |
6 | 1234405134201 |
7 | 140406325651 |
oct | 27250004171 |
9 | 8065554251 |
10 | 3131050105 |
11 | 136743a317 |
12 | 7346ba361 |
13 | 3ab8a9c91 |
14 | 219b9b361 |
15 | 134d2d83a |
hex | baa00879 |
3131050105 has 16 divisors (see below), whose sum is σ = 3896586000. Its totient is φ = 2412390400.
The previous prime is 3131050073. The next prime is 3131050133. The reversal of 3131050105 is 5010501313.
It can be written as a sum of positive squares in 8 ways, for example, as 1162264464 + 1968785641 = 34092^2 + 44371^2 .
It is not a de Polignac number, because 3131050105 - 25 = 3131050073 is a prime.
It is a super-2 number, since 2×31310501052 = 19606949520041022050, which contains 22 as substring.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 31221 + ... + 85069.
It is an arithmetic number, because the mean of its divisors is an integer number (243536625).
Almost surely, 23131050105 is an apocalyptic number.
It is an amenable number.
3131050105 is a deficient number, since it is larger than the sum of its proper divisors (765535895).
3131050105 is a wasteful number, since it uses less digits than its factorization.
3131050105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 54284.
The product of its (nonzero) digits is 225, while the sum is 19.
The square root of 3131050105 is about 55955.7870554959. The cubic root of 3131050105 is about 1462.9517603096.
Adding to 3131050105 its reverse (5010501313), we get a palindrome (8141551418).
The spelling of 3131050105 in words is "three billion, one hundred thirty-one million, fifty thousand, one hundred five".
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