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133144122 = 2323395239
BaseRepresentation
bin1111110111110…
…01111000111010
3100021112102101210
413323321320322
5233041102442
621113423550
73204464166
oct773717072
9307472353
10133144122
116917a171
123870abb6
1321779907
141397bca6
15ba5019c
hex7ef9e3a

133144122 has 16 divisors (see below), whose sum is σ = 267433920. Its totient is φ = 44190432.

The previous prime is 133144073. The next prime is 133144129. The reversal of 133144122 is 221441331.

It is not an unprimeable number, because it can be changed into a prime (133144129) 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, 46222 + ... + 49017.

It is an arithmetic number, because the mean of its divisors is an integer number (16714620).

Almost surely, 2133144122 is an apocalyptic number.

133144122 is an abundant number, since it is smaller than the sum of its proper divisors (134289798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133144122 is a wasteful number, since it uses less digits than its factorization.

133144122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95477.

The product of its digits is 576, while the sum is 21.

The square root of 133144122 is about 11538.8093839876. The cubic root of 133144122 is about 510.6311831456.

Adding to 133144122 its reverse (221441331), we get a palindrome (354585453).

The spelling of 133144122 in words is "one hundred thirty-three million, one hundred forty-four thousand, one hundred twenty-two".

Divisors: 1 2 3 6 233 466 699 1398 95239 190478 285717 571434 22190687 44381374 66572061 133144122