Base | Representation |
---|---|
bin | 110100001000… |
… | …111100001001 |
3 | 221201102010010 |
4 | 310020330021 |
5 | 11444334410 |
6 | 1204542133 |
7 | 224114463 |
oct | 64107411 |
9 | 27642103 |
10 | 13668105 |
11 | 7796060 |
12 | 46b1949 |
13 | 2aa7349 |
14 | 1b5b133 |
15 | 12eec20 |
hex | d08f09 |
13668105 has 16 divisors (see below), whose sum is σ = 23857344. Its totient is φ = 6626880.
The previous prime is 13668103. The next prime is 13668107. The reversal of 13668105 is 50186631.
It is an interprime number because it is at equal distance from previous prime (13668103) and next prime (13668107).
It is not a de Polignac number, because 13668105 - 21 = 13668103 is a prime.
It is not an unprimeable number, because it can be changed into a prime (13668101) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41254 + ... + 41583.
It is an arithmetic number, because the mean of its divisors is an integer number (1491084).
Almost surely, 213668105 is an apocalyptic number.
13668105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13668105 is a deficient number, since it is larger than the sum of its proper divisors (10189239).
13668105 is a wasteful number, since it uses less digits than its factorization.
13668105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 82856.
The product of its (nonzero) digits is 4320, while the sum is 30.
The square root of 13668105 is about 3697.0400322420. The cubic root of 13668105 is about 239.0944171577.
The spelling of 13668105 in words is "thirteen million, six hundred sixty-eight thousand, one hundred five".
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