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133132232 = 23157105997
BaseRepresentation
bin1111110111101…
…10111111001000
3100021111211002102
413323312333020
5233040212412
621113252532
73204414422
oct773667710
9307454072
10133132232
1169171242
1238704148
132177438c
1413977812
15ba4b8c2
hex7ef6fc8

133132232 has 16 divisors (see below), whose sum is σ = 251215260. Its totient is φ = 66141504.

The previous prime is 133132231. The next prime is 133132267. The reversal of 133132232 is 232231331.

It can be written as a sum of positive squares in 2 ways, for example, as 128913316 + 4218916 = 11354^2 + 2054^2 .

It is not an unprimeable number, because it can be changed into a prime (133132231) 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 3 ways as a sum of consecutive naturals, for example, 51743 + ... + 54254.

Almost surely, 2133132232 is an apocalyptic number.

It is an amenable number.

133132232 is a deficient number, since it is larger than the sum of its proper divisors (118083028).

133132232 is a wasteful number, since it uses less digits than its factorization.

133132232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106160 (or 106156 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 133132232 is about 11538.2941546834. The cubic root of 133132232 is about 510.6159826110.

Adding to 133132232 its reverse (232231331), we get a palindrome (365363563).

Subtracting 133132232 from its reverse (232231331), we obtain a palindrome (99099099).

The spelling of 133132232 in words is "one hundred thirty-three million, one hundred thirty-two thousand, two hundred thirty-two".

Divisors: 1 2 4 8 157 314 628 1256 105997 211994 423988 847976 16641529 33283058 66566116 133132232