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165005052 = 22337371633
BaseRepresentation
bin10011101010111…
…00011011111100
3102111111010101020
421311130123330
5314220130202
624212344140
74042343202
oct1165343374
9374433336
10165005052
1185160813
1247315050
1328253934
1417cb3072
15e7455bc
hex9d5c6fc

165005052 has 24 divisors (see below), whose sum is σ = 395418576. Its totient is φ = 53515008.

The previous prime is 165005047. The next prime is 165005081. The reversal of 165005052 is 250500561.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185373 + ... + 186260.

It is an arithmetic number, because the mean of its divisors is an integer number (16475774).

Almost surely, 2165005052 is an apocalyptic number.

165005052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165005052 is an abundant number, since it is smaller than the sum of its proper divisors (230413524).

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

165005052 is a wasteful number, since it uses less digits than its factorization.

165005052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371677 (or 371675 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 165005052 is about 12845.4292259932. The cubic root of 165005052 is about 548.4862530129.

The spelling of 165005052 in words is "one hundred sixty-five million, five thousand, fifty-two".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 371633 743266 1114899 1486532 2229798 4459596 13750421 27500842 41251263 55001684 82502526 165005052