Base | Representation |
---|---|
bin | 100011010001… |
… | …1011110110100 |
3 | 1021210122221021 |
4 | 1012203132310 |
5 | 14213323122 |
6 | 1500230524 |
7 | 313131325 |
oct | 106433664 |
9 | 37718837 |
10 | 18495412 |
11 | a492971 |
12 | 623b444 |
13 | 3aa7640 |
14 | 265644c |
15 | 19551c7 |
hex | 11a37b4 |
18495412 has 24 divisors (see below), whose sum is σ = 35802536. Its totient is φ = 8304768.
The previous prime is 18495409. The next prime is 18495413. The reversal of 18495412 is 21459481.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 9278116 + 9217296 = 3046^2 + 3036^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18495413) 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, 2883 + ... + 6730.
Almost surely, 218495412 is an apocalyptic number.
It is an amenable number.
18495412 is a deficient number, since it is larger than the sum of its proper divisors (17307124).
18495412 is a wasteful number, since it uses less digits than its factorization.
18495412 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9667 (or 9665 counting only the distinct ones).
The product of its digits is 11520, while the sum is 34.
The square root of 18495412 is about 4300.6292562833. The cubic root of 18495412 is about 264.4567582609.
The spelling of 18495412 in words is "eighteen million, four hundred ninety-five thousand, four hundred twelve".
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