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133300168 = 23149111829
BaseRepresentation
bin1111111000111…
…11111111001000
3100021211100110021
413330133333020
5233111101133
621121030224
73206014141
oct774377710
9307740407
10133300168
1169276431
1238785374
1321802951
14139bcac8
15ba8152d
hex7f1ffc8

133300168 has 16 divisors (see below), whose sum is σ = 251617500. Its totient is φ = 66202176.

The previous prime is 133300163. The next prime is 133300169. The reversal of 133300168 is 861003331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 133125444 + 174724 = 11538^2 + 418^2 .

It is not an unprimeable number, because it can be changed into a prime (133300163) 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, 54723 + ... + 57106.

Almost surely, 2133300168 is an apocalyptic number.

It is an amenable number.

133300168 is a deficient number, since it is larger than the sum of its proper divisors (118317332).

133300168 is a wasteful number, since it uses less digits than its factorization.

133300168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111984 (or 111980 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 133300168 is about 11545.5691934179. The cubic root of 133300168 is about 510.8305932369.

Adding to 133300168 its reverse (861003331), we get a palindrome (994303499).

The spelling of 133300168 in words is "one hundred thirty-three million, three hundred thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 149 298 596 1192 111829 223658 447316 894632 16662521 33325042 66650084 133300168