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1109102018 = 238910191399
BaseRepresentation
bin100001000011011…
…1000110111000010
32212021222012221112
41002012320313002
54232412231033
6302015523322
736325132403
oct10206706702
92767865845
101109102018
1151a071842
1226b529542
13148a198ab
14a742b9aa
1567582c48
hex421b8dc2

1109102018 has 16 divisors (see below), whose sum is σ = 1670760000. Its totient is φ = 552187632.

The previous prime is 1109102017. The next prime is 1109102051. The reversal of 1109102018 is 8102019011.

It is a junction number, because it is equal to n+sod(n) for n = 1109101984 and 1109102002.

It is not an unprimeable number, because it can be changed into a prime (1109102011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792083 + ... + 793481.

It is an arithmetic number, because the mean of its divisors is an integer number (104422500).

Almost surely, 21109102018 is an apocalyptic number.

1109102018 is a deficient number, since it is larger than the sum of its proper divisors (561657982).

1109102018 is a wasteful number, since it uses less digits than its factorization.

1109102018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809.

The product of its (nonzero) digits is 144, while the sum is 23.

The square root of 1109102018 is about 33303.1833013002. The cubic root of 1109102018 is about 1035.1195200645.

The spelling of 1109102018 in words is "one billion, one hundred nine million, one hundred two thousand, eighteen".

Divisors: 1 2 389 778 1019 1399 2038 2798 396391 544211 792782 1088422 1425581 2851162 554551009 1109102018