Search a number
-
+
18066283 = 194720231
BaseRepresentation
bin100010011101…
…0101101101011
31020222212021121
41010322231223
514111110113
61443120111
7306363244
oct104725553
936885247
1018066283
11a21a514
126073037
133987211
142583ccb
1518bce8d
hex113ab6b

18066283 has 8 divisors (see below), whose sum is σ = 19422720. Its totient is φ = 16750440.

The previous prime is 18066277. The next prime is 18066287. The reversal of 18066283 is 38266081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18066283 - 213 = 18058091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18066287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9223 + ... + 11008.

It is an arithmetic number, because the mean of its divisors is an integer number (2427840).

Almost surely, 218066283 is an apocalyptic number.

18066283 is a deficient number, since it is larger than the sum of its proper divisors (1356437).

18066283 is a wasteful number, since it uses less digits than its factorization.

18066283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20297.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 18066283 is about 4250.4450355228. The cubic root of 18066283 is about 262.3954316684.

The spelling of 18066283 in words is "eighteen million, sixty-six thousand, two hundred eighty-three".

Divisors: 1 19 47 893 20231 384389 950857 18066283