Base | Representation |
---|---|
bin | 1111101010010… |
… | …11000011100001 |
3 | 100011012202200122 |
4 | 13311023003201 |
5 | 232113120200 |
6 | 21011530025 |
7 | 3153464252 |
oct | 765130341 |
9 | 304182618 |
10 | 131379425 |
11 | 68184341 |
12 | 37bb9915 |
13 | 212ac608 |
14 | 1363cb29 |
15 | b802385 |
hex | 7d4b0e1 |
131379425 has 12 divisors (see below), whose sum is σ = 168529020. Its totient is φ = 101478720.
The previous prime is 131379407. The next prime is 131379461. The reversal of 131379425 is 524973131.
It can be written as a sum of positive squares in 6 ways, for example, as 26337424 + 105042001 = 5132^2 + 10249^2 .
It is not a de Polignac number, because 131379425 - 214 = 131363041 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89882 + ... + 91331.
It is an arithmetic number, because the mean of its divisors is an integer number (14044085).
Almost surely, 2131379425 is an apocalyptic number.
It is an amenable number.
131379425 is a deficient number, since it is larger than the sum of its proper divisors (37149595).
131379425 is a wasteful number, since it uses less digits than its factorization.
131379425 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 181252 (or 181247 counting only the distinct ones).
The product of its digits is 22680, while the sum is 35.
The square root of 131379425 is about 11462.0864156575. The cubic root of 131379425 is about 508.3651674650.
The spelling of 131379425 in words is "one hundred thirty-one million, three hundred seventy-nine thousand, four hundred twenty-five".
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