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1813856014 = 219432115261
BaseRepresentation
bin110110000011101…
…0011111100001110
311200102002102200101
41230013103330032
512203321343024
6455553121314
762643343645
oct15407237416
94612072611
101813856014
11850968963
1242755923a
1322ba31aa9
14132c8235c
15a9393c44
hex6c1d3f0e

1813856014 has 32 divisors (see below), whose sum is σ = 2945036160. Its totient is φ = 835077600.

The previous prime is 1813856003. The next prime is 1813856017. The reversal of 1813856014 is 4106583181.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813856017) 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, 342144 + ... + 347404.

It is an arithmetic number, because the mean of its divisors is an integer number (92032380).

Almost surely, 21813856014 is an apocalyptic number.

1813856014 is a deficient number, since it is larger than the sum of its proper divisors (1131180146).

1813856014 is a wasteful number, since it uses less digits than its factorization.

1813856014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5536.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 1813856014 is about 42589.3885140419. The cubic root of 1813856014 is about 1219.5537232717.

The spelling of 1813856014 in words is "one billion, eight hundred thirteen million, eight hundred fifty-six thousand, fourteen".

Divisors: 1 2 19 38 43 86 211 422 817 1634 4009 5261 8018 9073 10522 18146 99959 172387 199918 226223 344774 452446 1110071 2220142 4298237 8596474 21091349 42182698 47733053 95466106 906928007 1813856014