Search a number
-
+
13138674 = 236913169
BaseRepresentation
bin110010000111…
…101011110010
3220201111212120
4302013223302
511330414144
61145335110
7216451113
oct62075362
926644776
1013138674
11746430a
124497496
132950383
141a6020a
151247e19
hexc87af2

13138674 has 16 divisors (see below), whose sum is σ = 26323680. Its totient is φ = 4371840.

The previous prime is 13138673. The next prime is 13138687. The reversal of 13138674 is 47683131.

It is not an unprimeable number, because it can be changed into a prime (13138673) 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 7 ways as a sum of consecutive naturals, for example, 2562 + ... + 5730.

It is an arithmetic number, because the mean of its divisors is an integer number (1645230).

Almost surely, 213138674 is an apocalyptic number.

13138674 is an abundant number, since it is smaller than the sum of its proper divisors (13185006).

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

13138674 is a wasteful number, since it uses less digits than its factorization.

13138674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865.

The product of its digits is 12096, while the sum is 33.

The square root of 13138674 is about 3624.7308865625. The cubic root of 13138674 is about 235.9665877241.

The spelling of 13138674 in words is "thirteen million, one hundred thirty-eight thousand, six hundred seventy-four".

Divisors: 1 2 3 6 691 1382 2073 3169 4146 6338 9507 19014 2189779 4379558 6569337 13138674