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13381134 = 2313171553
BaseRepresentation
bin110011000010…
…111000001110
3221011211110120
4303002320032
511411144014
61154445410
7221511024
oct63027016
927154416
1013381134
11760a498
124593866
132a06840
141ac4714
151294ba9
hexcc2e0e

13381134 has 16 divisors (see below), whose sum is σ = 28821072. Its totient is φ = 4117248.

The previous prime is 13381117. The next prime is 13381153. The reversal of 13381134 is 43118331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85699 + ... + 85854.

It is an arithmetic number, because the mean of its divisors is an integer number (1801317).

Almost surely, 213381134 is an apocalyptic number.

13381134 is an abundant number, since it is smaller than the sum of its proper divisors (15439938).

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

13381134 is a wasteful number, since it uses less digits than its factorization.

13381134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171571.

The product of its digits is 864, while the sum is 24.

The square root of 13381134 is about 3658.0232366676. The cubic root of 13381134 is about 237.4092521259.

Adding to 13381134 its reverse (43118331), we get a palindrome (56499465).

The spelling of 13381134 in words is "thirteen million, three hundred eighty-one thousand, one hundred thirty-four".

Divisors: 1 2 3 6 13 26 39 78 171553 343106 514659 1029318 2230189 4460378 6690567 13381134