Base | Representation |
---|---|
bin | 100010011101… |
… | …1100111111110 |
3 | 1021000001101210 |
4 | 1010323213332 |
5 | 14111220024 |
6 | 1443145250 |
7 | 306410154 |
oct | 104734776 |
9 | 37001353 |
10 | 18070014 |
11 | a2222a6 |
12 | 6075226 |
13 | 3988b21 |
14 | 25853d4 |
15 | 18be129 |
hex | 113b9fe |
18070014 has 32 divisors (see below), whose sum is σ = 38460960. Its totient is φ = 5659776.
The previous prime is 18070001. The next prime is 18070027. The reversal of 18070014 is 41007081.
It is an interprime number because it is at equal distance from previous prime (18070001) and next prime (18070027).
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29172 + ... + 29784.
It is an arithmetic number, because the mean of its divisors is an integer number (1201905).
Almost surely, 218070014 is an apocalyptic number.
18070014 is an abundant number, since it is smaller than the sum of its proper divisors (20390946).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18070014 is an equidigital number, since it uses as much as digits as its factorization.
18070014 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 669 (or 635 counting only the distinct ones).
The product of its (nonzero) digits is 224, while the sum is 21.
The square root of 18070014 is about 4250.8839080831. The cubic root of 18070014 is about 262.4134934905.
Adding to 18070014 its reverse (41007081), we get a palindrome (59077095).
The spelling of 18070014 in words is "eighteen million, seventy thousand, fourteen".
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