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109808938 = 297756197
BaseRepresentation
bin1101000101110…
…00110100101010
321122121212112201
412202320310222
5211102341223
614521330414
72502234451
oct642706452
9248555481
10109808938
1156a91098
1230936a0a
1319999405
1410825b98
159990ead
hex68b8d2a

109808938 has 8 divisors (see below), whose sum is σ = 164884932. Its totient is φ = 54847296.

The previous prime is 109808927. The next prime is 109808953. The reversal of 109808938 is 839808901.

It can be written as a sum of positive squares in 2 ways, for example, as 108930969 + 877969 = 10437^2 + 937^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 26145 + ... + 30052.

Almost surely, 2109808938 is an apocalyptic number.

109808938 is a deficient number, since it is larger than the sum of its proper divisors (55075994).

109808938 is an equidigital number, since it uses as much as digits as its factorization.

109808938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57176.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 109808938 is about 10478.9759995908. The cubic root of 109808938 is about 478.8644133424.

The spelling of 109808938 in words is "one hundred nine million, eight hundred eight thousand, nine hundred thirty-eight".

Divisors: 1 2 977 1954 56197 112394 54904469 109808938