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109995018 = 2377933151
BaseRepresentation
bin1101000111001…
…10010000001010
321122222022210120
412203212100022
5211124320033
614525324110
72503641120
oct643462012
9248868716
10109995018
11570a8981
1230a06636
1319a33013
1410873910
1599cb1b3
hex68e640a

109995018 has 32 divisors (see below), whose sum is σ = 254607360. Its totient is φ = 31028400.

The previous prime is 109995007. The next prime is 109995019. The reversal of 109995018 is 810599901.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (109995019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13258 + ... + 19893.

It is an arithmetic number, because the mean of its divisors is an integer number (7956480).

Almost surely, 2109995018 is an apocalyptic number.

109995018 is an abundant number, since it is smaller than the sum of its proper divisors (144612342).

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

109995018 is a wasteful number, since it uses less digits than its factorization.

109995018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33242.

The product of its (nonzero) digits is 29160, while the sum is 42.

The square root of 109995018 is about 10487.8509714812. The cubic root of 109995018 is about 479.1347520050.

The spelling of 109995018 in words is "one hundred nine million, nine hundred ninety-five thousand, eighteen".

Divisors: 1 2 3 6 7 14 21 42 79 158 237 474 553 1106 1659 3318 33151 66302 99453 198906 232057 464114 696171 1392342 2618929 5237858 7856787 15713574 18332503 36665006 54997509 109995018