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149835018 = 2323247207
BaseRepresentation
bin10001110111001…
…00110100001010
3101102221102000010
420323210310022
5301324210033
622511252350
73466401534
oct1073446412
9342842003
10149835018
117763a2a3
124221a0b6
1325071a98
1415c84854
15d24a863
hex8ee4d0a

149835018 has 24 divisors (see below), whose sum is σ = 313272288. Its totient is φ = 47772472.

The previous prime is 149835017. The next prime is 149835019. The reversal of 149835018 is 810538941.

It is an interprime number because it is at equal distance from previous prime (149835017) and next prime (149835019).

It is not an unprimeable number, because it can be changed into a prime (149835011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20430 + ... + 26777.

It is an arithmetic number, because the mean of its divisors is an integer number (13053012).

Almost surely, 2149835018 is an apocalyptic number.

149835018 is an abundant number, since it is smaller than the sum of its proper divisors (163437270).

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

149835018 is a wasteful number, since it uses less digits than its factorization.

149835018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47258 (or 47235 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 149835018 is about 12240.7114989285. The cubic root of 149835018 is about 531.1344136444.

The spelling of 149835018 in words is "one hundred forty-nine million, eight hundred thirty-five thousand, eighteen".

Divisors: 1 2 3 6 23 46 69 138 529 1058 1587 3174 47207 94414 141621 283242 1085761 2171522 3257283 6514566 24972503 49945006 74917509 149835018