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18071304 = 2335314207
BaseRepresentation
bin100010011101…
…1111100001000
31021000010011120
41010323330020
514111240204
61443155240
7306414006
oct104737410
937003146
1018071304
11a223269
126075b20
1339895a4
142585a76
1518be6d9
hex113bf08

18071304 has 32 divisors (see below), whose sum is σ = 46033920. Its totient is φ = 5909696.

The previous prime is 18071297. The next prime is 18071351. The reversal of 18071304 is 40317081.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5832 + ... + 8375.

It is an arithmetic number, because the mean of its divisors is an integer number (1438560).

Almost surely, 218071304 is an apocalyptic number.

It is an amenable number.

18071304 is an abundant number, since it is smaller than the sum of its proper divisors (27962616).

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

18071304 is a wasteful number, since it uses less digits than its factorization.

18071304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14269 (or 14265 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 18071304 is about 4251.0356385239. The cubic root of 18071304 is about 262.4197378198.

Adding to 18071304 its reverse (40317081), we get a palindrome (58388385).

The spelling of 18071304 in words is "eighteen million, seventy-one thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 24 53 106 159 212 318 424 636 1272 14207 28414 42621 56828 85242 113656 170484 340968 752971 1505942 2258913 3011884 4517826 6023768 9035652 18071304