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109687648 = 257489677
BaseRepresentation
bin1101000100110…
…11001101100000
321122101201011111
412202123031200
5211040001043
614514553104
72501221030
oct642331540
9248351144
10109687648
1156a08a54
1230898794
1319956145
14107d38c0
15996a09d
hex689b360

109687648 has 24 divisors (see below), whose sum is σ = 246797712. Its totient is φ = 47008896.

The previous prime is 109687637. The next prime is 109687651. The reversal of 109687648 is 846786901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244615 + ... + 245062.

It is an arithmetic number, because the mean of its divisors is an integer number (10283238).

Almost surely, 2109687648 is an apocalyptic number.

It is an amenable number.

109687648 is an abundant number, since it is smaller than the sum of its proper divisors (137110064).

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

109687648 is an equidigital number, since it uses as much as digits as its factorization.

109687648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489694 (or 489686 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 109687648 is about 10473.1870984911. The cubic root of 109687648 is about 478.6880377103.

The spelling of 109687648 in words is "one hundred nine million, six hundred eighty-seven thousand, six hundred forty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 489677 979354 1958708 3427739 3917416 6855478 7834832 13710956 15669664 27421912 54843824 109687648