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109687868 = 22127215921
BaseRepresentation
bin1101000100110…
…11010000111100
321122101201110122
412202123100330
5211040002433
614514554112
72501221463
oct642332074
9248351418
10109687868
1156a09134
1230898938
1319956284
14107d39da
15996a198
hex689b43c

109687868 has 12 divisors (see below), whose sum is σ = 193466112. Its totient is φ = 54411840.

The previous prime is 109687841. The next prime is 109687871. The reversal of 109687868 is 868786901.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 107453 + ... + 108468.

It is an arithmetic number, because the mean of its divisors is an integer number (16122176).

Almost surely, 2109687868 is an apocalyptic number.

It is an amenable number.

109687868 is a deficient number, since it is larger than the sum of its proper divisors (83778244).

109687868 is a wasteful number, since it uses less digits than its factorization.

109687868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216052 (or 216050 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 109687868 is about 10473.1976014969. The cubic root of 109687868 is about 478.6883577442.

The spelling of 109687868 in words is "one hundred nine million, six hundred eighty-seven thousand, eight hundred sixty-eight".

Divisors: 1 2 4 127 254 508 215921 431842 863684 27421967 54843934 109687868