Base | Representation |
---|---|
bin | 110101011110… |
… | …100110101011 |
3 | 222101020102202 |
4 | 311132212223 |
5 | 12042101422 |
6 | 1220250415 |
7 | 230105453 |
oct | 65364653 |
9 | 28336382 |
10 | 14018987 |
11 | 7a05744 |
12 | 4840a0b |
13 | 2b9ac78 |
14 | 1c0cd63 |
15 | 136db92 |
hex | d5e9ab |
14018987 has 4 divisors (see below), whose sum is σ = 14028000. Its totient is φ = 14009976.
The previous prime is 14018929. The next prime is 14019011. The reversal of 14018987 is 78981041.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 14018987 - 26 = 14018923 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 14018987.
It is not an unprimeable number, because it can be changed into a prime (14018087) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1508 + ... + 5505.
It is an arithmetic number, because the mean of its divisors is an integer number (3507000).
Almost surely, 214018987 is an apocalyptic number.
14018987 is a deficient number, since it is larger than the sum of its proper divisors (9013).
14018987 is an equidigital number, since it uses as much as digits as its factorization.
14018987 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9012.
The product of its (nonzero) digits is 16128, while the sum is 38.
The square root of 14018987 is about 3744.1937716950. The cubic root of 14018987 is about 241.1231328445.
The spelling of 14018987 in words is "fourteen million, eighteen thousand, nine hundred eighty-seven".
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