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153185028 = 22317244171
BaseRepresentation
bin10010010000101…
…10101100000100
3101200020121100120
421020112230010
5303203410103
623111141540
73540023403
oct1110265404
9350217316
10153185028
11795181a7
12433748b0
1325975839
14164b763a
15d6ad253
hex9216b04

153185028 has 36 divisors (see below), whose sum is σ = 379702512. Its totient is φ = 48056960.

The previous prime is 153185027. The next prime is 153185041. The reversal of 153185028 is 820581351.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 153185028.

It is not an unprimeable number, because it can be changed into a prime (153185023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18618 + ... + 25553.

It is an arithmetic number, because the mean of its divisors is an integer number (10547292).

Almost surely, 2153185028 is an apocalyptic number.

It is an amenable number.

153185028 is an abundant number, since it is smaller than the sum of its proper divisors (226517484).

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

153185028 is a wasteful number, since it uses less digits than its factorization.

153185028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44212 (or 44193 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 153185028 is about 12376.7939305783. The cubic root of 153185028 is about 535.0636404918.

The spelling of 153185028 in words is "one hundred fifty-three million, one hundred eighty-five thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 289 578 867 1156 1734 3468 44171 88342 132513 176684 265026 530052 750907 1501814 2252721 3003628 4505442 9010884 12765419 25530838 38296257 51061676 76592514 153185028