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13138482 = 2373110091
BaseRepresentation
bin110010000111…
…101000110010
3220201111121110
4302013220302
511330412412
61145334150
7216450420
oct62075062
926644543
1013138482
117464155
124497356
132950266
141a60110
151247d3c
hexc87a32

13138482 has 32 divisors (see below), whose sum is σ = 31002624. Its totient is φ = 3632400.

The previous prime is 13138471. The next prime is 13138487. The reversal of 13138482 is 28483131.

It is not an unprimeable number, because it can be changed into a prime (13138487) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3744 + ... + 6347.

It is an arithmetic number, because the mean of its divisors is an integer number (968832).

Almost surely, 213138482 is an apocalyptic number.

13138482 is an abundant number, since it is smaller than the sum of its proper divisors (17864142).

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

13138482 is a wasteful number, since it uses less digits than its factorization.

13138482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10134.

The product of its digits is 4608, while the sum is 30.

The square root of 13138482 is about 3624.7044017409. The cubic root of 13138482 is about 235.9654382979.

The spelling of 13138482 in words is "thirteen million, one hundred thirty-eight thousand, four hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 31 42 62 93 186 217 434 651 1302 10091 20182 30273 60546 70637 141274 211911 312821 423822 625642 938463 1876926 2189747 4379494 6569241 13138482