Base | Representation |
---|---|
bin | 1111101001110… |
… | …10100111001011 |
3 | 100011002100022012 |
4 | 13310322213023 |
5 | 232103441300 |
6 | 21010250135 |
7 | 3153064016 |
oct | 764724713 |
9 | 304070265 |
10 | 131312075 |
11 | 68138784 |
12 | 37b8694b |
13 | 21287a6b |
14 | 1362237d |
15 | b7dc435 |
hex | 7d3a9cb |
131312075 has 12 divisors (see below), whose sum is σ = 167228880. Its totient is φ = 102209760.
The previous prime is 131312047. The next prime is 131312147. The reversal of 131312075 is 570213131.
It is not a de Polignac number, because 131312075 - 26 = 131312011 is a prime.
It is a super-2 number, since 2×1313120752 = 34485722081611250, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 131312075.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70055 + ... + 71904.
It is an arithmetic number, because the mean of its divisors is an integer number (13935740).
Almost surely, 2131312075 is an apocalyptic number.
131312075 is a deficient number, since it is larger than the sum of its proper divisors (35916805).
131312075 is a wasteful number, since it uses less digits than its factorization.
131312075 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 142006 (or 142001 counting only the distinct ones).
The product of its (nonzero) digits is 630, while the sum is 23.
The square root of 131312075 is about 11459.1480922449. The cubic root of 131312075 is about 508.2782836263.
The spelling of 131312075 in words is "one hundred thirty-one million, three hundred twelve thousand, seventy-five".
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