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18381829101 = 324049254783
BaseRepresentation
bin10001000111101001…
…000111001111101101
31202110001122200002020
4101013221013033231
5300121222012401
612240002220353
71220342653326
oct210751071755
952401580066
1018381829101
1178830772a9
1236900546b9
13196c37c16c
14c6542144d
15728b7cd36
hex447a473ed

18381829101 has 8 divisors (see below), whose sum is σ = 24510220800. Its totient is φ = 12253995072.

The previous prime is 18381829087. The next prime is 18381829159. The reversal of 18381829101 is 10192818381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18381829101 - 27 = 18381828973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18381829001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55245 + ... + 199538.

It is an arithmetic number, because the mean of its divisors is an integer number (3063777600).

Almost surely, 218381829101 is an apocalyptic number.

It is an amenable number.

18381829101 is a deficient number, since it is larger than the sum of its proper divisors (6128391699).

18381829101 is a wasteful number, since it uses less digits than its factorization.

18381829101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278835.

The product of its (nonzero) digits is 27648, while the sum is 42.

The spelling of 18381829101 in words is "eighteen billion, three hundred eighty-one million, eight hundred twenty-nine thousand, one hundred one".

Divisors: 1 3 24049 72147 254783 764349 6127276367 18381829101