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181002134 = 2234199391
BaseRepresentation
bin10101100100111…
…01111110010110
3110121120212020202
422302131332112
5332314032014
625543300502
74325331005
oct1262357626
9417525222
10181002134
1193197645
125074a732
132b665071
141a078c3c
1510d553de
hexac9df96

181002134 has 16 divisors (see below), whose sum is σ = 284014080. Its totient is φ = 86350440.

The previous prime is 181002127. The next prime is 181002139. The reversal of 181002134 is 431200181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181002139) by changing a digit.

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, 14579 + ... + 23969.

It is an arithmetic number, because the mean of its divisors is an integer number (17750880).

Almost surely, 2181002134 is an apocalyptic number.

181002134 is a deficient number, since it is larger than the sum of its proper divisors (103011946).

181002134 is a wasteful number, since it uses less digits than its factorization.

181002134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9835.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 181002134 is about 13453.7033563254. The cubic root of 181002134 is about 565.6675056485.

The spelling of 181002134 in words is "one hundred eighty-one million, two thousand, one hundred thirty-four".

Divisors: 1 2 23 46 419 838 9391 9637 18782 19274 215993 431986 3934829 7869658 90501067 181002134