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109284237 = 32109711069
BaseRepresentation
bin1101000001110…
…00101110001101
321121122012210100
412200320232031
5210434043422
614502201313
72464620636
oct640705615
9247565710
10109284237
1156762957
1230723239
131984463a
141072a88d
1598da7ac
hex6838b8d

109284237 has 12 divisors (see below), whose sum is σ = 158013180. Its totient is φ = 72783168.

The previous prime is 109284193. The next prime is 109284239. The reversal of 109284237 is 732482901.

It can be written as a sum of positive squares in 2 ways, for example, as 19527561 + 89756676 = 4419^2 + 9474^2 .

It is not a de Polignac number, because 109284237 - 219 = 108759949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109284239) 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 11 ways as a sum of consecutive naturals, for example, 4339 + ... + 15407.

It is an arithmetic number, because the mean of its divisors is an integer number (13167765).

Almost surely, 2109284237 is an apocalyptic number.

It is an amenable number.

109284237 is a deficient number, since it is larger than the sum of its proper divisors (48728943).

109284237 is a wasteful number, since it uses less digits than its factorization.

109284237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12172 (or 12169 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 109284237 is about 10453.9101297074. The cubic root of 109284237 is about 478.1004746102.

The spelling of 109284237 in words is "one hundred nine million, two hundred eighty-four thousand, two hundred thirty-seven".

Divisors: 1 3 9 1097 3291 9873 11069 33207 99621 12142693 36428079 109284237