Base | Representation |
---|---|
bin | 100010010110… |
… | …1111110111110 |
3 | 1020220012202110 |
4 | 1010231332332 |
5 | 14102423032 |
6 | 1442034450 |
7 | 306055236 |
oct | 104557676 |
9 | 36805673 |
10 | 18014142 |
11 | a194323 |
12 | 6048a26 |
13 | 3969573 |
14 | 256ccc6 |
15 | 18ac7cc |
hex | 112dfbe |
18014142 has 16 divisors (see below), whose sum is σ = 36070272. Its totient is φ = 5997720.
The previous prime is 18014111. The next prime is 18014167. The reversal of 18014142 is 24141081.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8073 + ... + 10059.
It is an arithmetic number, because the mean of its divisors is an integer number (2254392).
Almost surely, 218014142 is an apocalyptic number.
18014142 is an abundant number, since it is smaller than the sum of its proper divisors (18056130).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18014142 is a wasteful number, since it uses less digits than its factorization.
18014142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3503.
The product of its (nonzero) digits is 256, while the sum is 21.
The square root of 18014142 is about 4244.3070105731. The cubic root of 18014142 is about 262.1427557593.
The spelling of 18014142 in words is "eighteen million, fourteen thousand, one hundred forty-two".
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