Base | Representation |
---|---|
bin | 1111110010011… |
… | …10100001111101 |
3 | 100020012202121001 |
4 | 13321032201331 |
5 | 232401122422 |
6 | 21050410301 |
7 | 3165511654 |
oct | 771164175 |
9 | 306182531 |
10 | 132442237 |
11 | 6883a8a4 |
12 | 38430991 |
13 | 215922b5 |
14 | 1383819b |
15 | b962227 |
hex | 7e4e87d |
132442237 has 2 divisors, whose sum is σ = 132442238. Its totient is φ = 132442236.
The previous prime is 132442213. The next prime is 132442243. The reversal of 132442237 is 732244231.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 111957561 + 20484676 = 10581^2 + 4526^2 .
It is an emirp because it is prime and its reverse (732244231) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 132442237 - 215 = 132409469 is a prime.
It is a super-2 number, since 2×1324422372 = 35081892283128338, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (132442207) by changing a digit.
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 as a sum of consecutive naturals, namely, 66221118 + 66221119.
It is an arithmetic number, because the mean of its divisors is an integer number (66221119).
Almost surely, 2132442237 is an apocalyptic number.
It is an amenable number.
132442237 is a deficient number, since it is larger than the sum of its proper divisors (1).
132442237 is an equidigital number, since it uses as much as digits as its factorization.
132442237 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 8064, while the sum is 28.
The square root of 132442237 is about 11508.3550953210. The cubic root of 132442237 is about 509.7323175557.
Adding to 132442237 its reverse (732244231), we get a palindrome (864686468).
The spelling of 132442237 in words is "one hundred thirty-two million, four hundred forty-two thousand, two hundred thirty-seven".
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