Base | Representation |
---|---|
bin | 110011011101… |
… | …111111011100 |
3 | 221101110210200 |
4 | 303131333130 |
5 | 11423222223 |
6 | 1201103500 |
7 | 222452553 |
oct | 63357734 |
9 | 27343720 |
10 | 13492188 |
11 | 7685976 |
12 | 4627b90 |
13 | 2a45258 |
14 | 1b12d9a |
15 | 12b7a43 |
hex | cddfdc |
13492188 has 18 divisors (see below), whose sum is σ = 34105344. Its totient is φ = 4497384.
The previous prime is 13492187. The next prime is 13492207. The reversal of 13492188 is 88129431.
It is a tau number, because it is divible by the number of its divisors (18).
It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 374783 = 13492188 / (1 + 3 + 4 + 9 + 2 + 1 + 8 + 8).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13492181) 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 5 ways as a sum of consecutive naturals, for example, 187356 + ... + 187427.
Almost surely, 213492188 is an apocalyptic number.
13492188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
13492188 is an abundant number, since it is smaller than the sum of its proper divisors (20613156).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13492188 is a wasteful number, since it uses less digits than its factorization.
13492188 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 374793 (or 374788 counting only the distinct ones).
The product of its digits is 13824, while the sum is 36.
The square root of 13492188 is about 3673.1713817899. The cubic root of 13492188 is about 238.0642201295.
The spelling of 13492188 in words is "thirteen million, four hundred ninety-two thousand, one hundred eighty-eight".
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