Base | Representation |
---|---|
bin | 1111101000111… |
… | …11100000110011 |
3 | 100010212201001002 |
4 | 13310133200303 |
5 | 232041413300 |
6 | 21004032215 |
7 | 3152122265 |
oct | 764374063 |
9 | 303781032 |
10 | 131201075 |
11 | 68072345 |
12 | 37b3266b |
13 | 21249395 |
14 | 135d3b35 |
15 | b7b95d5 |
hex | 7d1f833 |
131201075 has 48 divisors (see below), whose sum is σ = 177830880. Its totient is φ = 95800320.
The previous prime is 131201029. The next prime is 131201101. The reversal of 131201075 is 570102131.
It is not a de Polignac number, because 131201075 - 216 = 131135539 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1797239 + ... + 1797311.
It is an arithmetic number, because the mean of its divisors is an integer number (3704810).
Almost surely, 2131201075 is an apocalyptic number.
131201075 is a deficient number, since it is larger than the sum of its proper divisors (46629805).
131201075 is a wasteful number, since it uses less digits than its factorization.
131201075 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 216 (or 211 counting only the distinct ones).
The product of its (nonzero) digits is 210, while the sum is 20.
The square root of 131201075 is about 11454.3037763105. The cubic root of 131201075 is about 508.1350249194.
The spelling of 131201075 in words is "one hundred thirty-one million, two hundred one thousand, seventy-five".
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