Search a number
-
+
18082893 = 310756333
BaseRepresentation
bin100010011111…
…0110001001101
31021000201001210
41010332301031
514112123033
61443325033
7306462543
oct104766115
937021053
1018082893
11a230a44
126080779
13399194a
142589d93
1518c2d63
hex113ec4d

18082893 has 8 divisors (see below), whose sum is σ = 24336288. Its totient is φ = 11942384.

The previous prime is 18082891. The next prime is 18082907. The reversal of 18082893 is 39828081.

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 18082893 - 21 = 18082891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18082891) 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, 27846 + ... + 28487.

It is an arithmetic number, because the mean of its divisors is an integer number (3042036).

Almost surely, 218082893 is an apocalyptic number.

It is an amenable number.

18082893 is a deficient number, since it is larger than the sum of its proper divisors (6253395).

18082893 is a wasteful number, since it uses less digits than its factorization.

18082893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56443.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 18082893 is about 4252.3984996705. The cubic root of 18082893 is about 262.4758218094.

The spelling of 18082893 in words is "eighteen million, eighty-two thousand, eight hundred ninety-three".

Divisors: 1 3 107 321 56333 168999 6027631 18082893