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133150660 = 2256657533
BaseRepresentation
bin1111110111110…
…11011111000100
3100021112202100221
413323323133010
5233041310120
621113514124
73204522226
oct773733704
9307482327
10133150660
1169184075
1238712944
132177c896
1413980416
15ba520aa
hex7efb7c4

133150660 has 12 divisors (see below), whose sum is σ = 279616428. Its totient is φ = 53260256.

The previous prime is 133150643. The next prime is 133150691. The reversal of 133150660 is 66051331.

133150660 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 101969604 + 31181056 = 10098^2 + 5584^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3328747 + ... + 3328786.

It is an arithmetic number, because the mean of its divisors is an integer number (23301369).

Almost surely, 2133150660 is an apocalyptic number.

133150660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133150660 is an abundant number, since it is smaller than the sum of its proper divisors (146465768).

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

133150660 is a wasteful number, since it uses less digits than its factorization.

133150660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6657542 (or 6657540 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 133150660 is about 11539.0926853024. The cubic root of 133150660 is about 510.6395411364.

The spelling of 133150660 in words is "one hundred thirty-three million, one hundred fifty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 6657533 13315066 26630132 33287665 66575330 133150660