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18074200 = 235290371
BaseRepresentation
bin100010011110…
…0101001011000
31021000021010211
41010330221120
514111333300
61443220504
7306425314
oct104745130
937007124
1018074200
11a225461
126077734
13398a9c1
142586b44
1518c04ba
hex113ca58

18074200 has 24 divisors (see below), whose sum is σ = 42022980. Its totient is φ = 7229600.

The previous prime is 18074141. The next prime is 18074227. The reversal of 18074200 is 247081.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 44986 + ... + 45385.

Almost surely, 218074200 is an apocalyptic number.

18074200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18074200 is an abundant number, since it is smaller than the sum of its proper divisors (23948780).

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

18074200 is a wasteful number, since it uses less digits than its factorization.

18074200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90387 (or 90378 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 18074200 is about 4251.3762477579. The cubic root of 18074200 is about 262.4337550146.

The spelling of 18074200 in words is "eighteen million, seventy-four thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 90371 180742 361484 451855 722968 903710 1807420 2259275 3614840 4518550 9037100 18074200