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9018985371 = 3111223223469
BaseRepresentation
bin10000110011001001…
…01100101110011011
3212021112210221001020
420121210230232123
5121432330012441
64050540053523
7436333052664
oct103144545633
925245727036
109018985371
113908a89220
1218b85342a3
13b09699946
14617b5836b
1537bbcbe66
hex21992cb9b

9018985371 has 16 divisors (see below), whose sum is σ = 13129309440. Its totient is φ = 5461557920.

The previous prime is 9018985361. The next prime is 9018985411. The reversal of 9018985371 is 1735898109.

9018985371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9018985371 - 227 = 8884767643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9018985301) by changing a digit.

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, 71376 + ... + 152093.

It is an arithmetic number, because the mean of its divisors is an integer number (820581840).

Almost surely, 29018985371 is an apocalyptic number.

9018985371 is a deficient number, since it is larger than the sum of its proper divisors (4110324069).

9018985371 is a wasteful number, since it uses less digits than its factorization.

9018985371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224706.

The product of its (nonzero) digits is 544320, while the sum is 51.

The square root of 9018985371 is about 94968.3387819330. The cubic root of 9018985371 is about 2081.5454314559.

The spelling of 9018985371 in words is "nine billion, eighteen million, nine hundred eighty-five thousand, three hundred seventy-one".

Divisors: 1 3 11 33 1223 3669 13453 40359 223469 670407 2458159 7374477 273302587 819907761 3006328457 9018985371