Base | Representation |
---|---|
bin | 1111101111111… |
… | …10101101010001 |
3 | 100012121011002120 |
4 | 13313332231101 |
5 | 232310142111 |
6 | 21035404453 |
7 | 3162650514 |
oct | 767765521 |
9 | 305534076 |
10 | 132115281 |
11 | 68637191 |
12 | 382b3729 |
13 | 214a952c |
14 | 13790d7b |
15 | b8ea406 |
hex | 7dfeb51 |
132115281 has 8 divisors (see below), whose sum is σ = 176430240. Its totient is φ = 87938592.
The previous prime is 132115267. The next prime is 132115283. The reversal of 132115281 is 182511231.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 132115281 - 27 = 132115153 is a prime.
It is a super-2 number, since 2×1321152812 = 34908894947417922, which contains 22 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (132115283) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32316 + ... + 36173.
It is an arithmetic number, because the mean of its divisors is an integer number (22053780).
Almost surely, 2132115281 is an apocalyptic number.
It is an amenable number.
132115281 is a deficient number, since it is larger than the sum of its proper divisors (44314959).
132115281 is an equidigital number, since it uses as much as digits as its factorization.
132115281 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 69135.
The product of its digits is 480, while the sum is 24.
The square root of 132115281 is about 11494.1411597387. The cubic root of 132115281 is about 509.3125185183.
The spelling of 132115281 in words is "one hundred thirty-two million, one hundred fifteen thousand, two hundred eighty-one".
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