Search a number
-
+
18068892 = 22317233851
BaseRepresentation
bin100010011101…
…1010110011100
31020222222212020
41010323112130
514111201032
61443140140
7306403662
oct104732634
936888766
1018068892
11a221476
126074650
13398846a
142584c32
1518bdb2c
hex113b59c

18068892 has 48 divisors (see below), whose sum is σ = 46593792. Its totient is φ = 5420800.

The previous prime is 18068891. The next prime is 18068893. The reversal of 18068892 is 29886081.

It is an interprime number because it is at equal distance from previous prime (18068891) and next prime (18068893).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18068891) 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 15 ways as a sum of consecutive naturals, for example, 2767 + ... + 6617.

It is an arithmetic number, because the mean of its divisors is an integer number (970704).

Almost surely, 218068892 is an apocalyptic number.

18068892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18068892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23296896).

18068892 is an abundant number, since it is smaller than the sum of its proper divisors (28524900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18068892 is a wasteful number, since it uses less digits than its factorization.

18068892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3898 (or 3896 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 18068892 is about 4250.7519334819. The cubic root of 18068892 is about 262.4080621346.

The spelling of 18068892 in words is "eighteen million, sixty-eight thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 17 23 34 46 51 68 69 92 102 138 204 276 391 782 1173 1564 2346 3851 4692 7702 11553 15404 23106 46212 65467 88573 130934 177146 196401 261868 265719 354292 392802 531438 785604 1062876 1505741 3011482 4517223 6022964 9034446 18068892