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18057772110 = 235785989391
BaseRepresentation
bin10000110100010100…
…111011110001001110
31201121110212212110110
4100310110323301032
5243440242201420
612143504420450
71206326346630
oct206424736116
951543785413
1018057772110
117727161504
1235bb617726
13191a1aa471
14c34388a50
1570a4baee0
hex43453bc4e

18057772110 has 32 divisors (see below), whose sum is σ = 49529889792. Its totient is φ = 4127490720.

The previous prime is 18057772091. The next prime is 18057772133. The reversal of 18057772110 is 1127775081.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42994486 + ... + 42994905.

It is an arithmetic number, because the mean of its divisors is an integer number (1547809056).

Almost surely, 218057772110 is an apocalyptic number.

18057772110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18057772110 is an abundant number, since it is smaller than the sum of its proper divisors (31472117682).

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

18057772110 is a wasteful number, since it uses less digits than its factorization.

18057772110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85989408.

The product of its (nonzero) digits is 27440, while the sum is 39.

The spelling of 18057772110 in words is "eighteen billion, fifty-seven million, seven hundred seventy-two thousand, one hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 85989391 171978782 257968173 429946955 515936346 601925737 859893910 1203851474 1289840865 1805777211 2579681730 3009628685 3611554422 6019257370 9028886055 18057772110