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18282045 = 356731811
BaseRepresentation
bin100010110111…
…1011000111101
31021101211020210
41011233120331
514140011140
61451503033
7311252265
oct105573075
937354223
1018282045
11a357631
126157a79
133a314a2
1425dc7a5
151911d80
hex116f63d

18282045 has 16 divisors (see below), whose sum is σ = 29310912. Its totient is φ = 9730560.

The previous prime is 18282029. The next prime is 18282049. The reversal of 18282045 is 54028281.

It is not a de Polignac number, because 18282045 - 24 = 18282029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18282049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9190 + ... + 11000.

It is an arithmetic number, because the mean of its divisors is an integer number (1831932).

Almost surely, 218282045 is an apocalyptic number.

18282045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18282045 is a deficient number, since it is larger than the sum of its proper divisors (11028867).

18282045 is a wasteful number, since it uses less digits than its factorization.

18282045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 18282045 is about 4275.7508112611. The cubic root of 18282045 is about 263.4358793412.

The spelling of 18282045 in words is "eighteen million, two hundred eighty-two thousand, forty-five".

Divisors: 1 3 5 15 673 1811 2019 3365 5433 9055 10095 27165 1218803 3656409 6094015 18282045