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18096040 = 235452401
BaseRepresentation
bin100010100000…
…1111110101000
31021001101002201
41011001332220
514113033130
61443505544
7306546064
oct105017650
937041081
1018096040
11a23a906
1260882b4
133997921
142590aa4
1518c6bca
hex1141fa8

18096040 has 16 divisors (see below), whose sum is σ = 40716180. Its totient is φ = 7238400.

The previous prime is 18096031. The next prime is 18096053. The reversal of 18096040 is 4069081.

It can be written as a sum of positive squares in 2 ways, for example, as 16337764 + 1758276 = 4042^2 + 1326^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226161 + ... + 226240.

Almost surely, 218096040 is an apocalyptic number.

18096040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18096040 is an abundant number, since it is smaller than the sum of its proper divisors (22620140).

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

18096040 is a wasteful number, since it uses less digits than its factorization.

18096040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452412 (or 452408 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 18096040 is about 4253.9440522884. The cubic root of 18096040 is about 262.5394166055.

The spelling of 18096040 in words is "eighteen million, ninety-six thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 452401 904802 1809604 2262005 3619208 4524010 9048020 18096040