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18300305750 = 253518914107
BaseRepresentation
bin10001000010110010…
…001000000101010110
31202020101020212001212
4101002302020011112
5244434334241000
612223531021422
71215333014036
oct210262100526
952211225055
1018300305750
117841055631
12366889a872
1319585075ac
14c5867d8c6
15721927c35
hex442c88156

18300305750 has 32 divisors (see below), whose sum is σ = 34267203360. Its totient is φ = 7318192800.

The previous prime is 18300305743. The next prime is 18300305759. The reversal of 18300305750 is 5750300381.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18300305759) 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, 1290197 + ... + 1304303.

It is an arithmetic number, because the mean of its divisors is an integer number (1070850105).

Almost surely, 218300305750 is an apocalyptic number.

18300305750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18300305750 is a deficient number, since it is larger than the sum of its proper divisors (15966897610).

18300305750 is a wasteful number, since it uses less digits than its factorization.

18300305750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19313 (or 19303 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 18300305750 in words is "eighteen billion, three hundred million, three hundred five thousand, seven hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 5189 10378 14107 25945 28214 51890 70535 129725 141070 259450 352675 648625 705350 1297250 1763375 3526750 73201223 146402446 366006115 732012230 1830030575 3660061150 9150152875 18300305750