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18088020201 = 36029340067
BaseRepresentation
bin10000110110001000…
…010100100011101001
31201200120210122001010
4100312020110203221
5244021013121301
612150505014133
71210144430526
oct206610244351
951616718033
1018088020201
117742241329
123609784349
13192353b344
14c383c014d
1570ce935d6
hex4362148e9

18088020201 has 4 divisors (see below), whose sum is σ = 24117360272. Its totient is φ = 12058680132.

The previous prime is 18088020191. The next prime is 18088020221. The reversal of 18088020201 is 10202088081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 18088020201 - 215 = 18087987433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18088020221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3014670031 + ... + 3014670036.

It is an arithmetic number, because the mean of its divisors is an integer number (6029340068).

Almost surely, 218088020201 is an apocalyptic number.

It is an amenable number.

18088020201 is a deficient number, since it is larger than the sum of its proper divisors (6029340071).

18088020201 is an equidigital number, since it uses as much as digits as its factorization.

18088020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6029340070.

The product of its (nonzero) digits is 2048, while the sum is 30.

The spelling of 18088020201 in words is "eighteen billion, eighty-eight million, twenty thousand, two hundred one".

Divisors: 1 3 6029340067 18088020201