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109182138 = 23132236277
BaseRepresentation
bin1101000000111…
…11110010111010
321121110000201220
412200133302322
5210422312023
614500052510
72464014162
oct640376272
9247400656
10109182138
11566a317a
1230694136
131980a020
14107015a2
1598ba3e3
hex681fcba

109182138 has 32 divisors (see below), whose sum is σ = 236253696. Its totient is φ = 33438528.

The previous prime is 109182121. The next prime is 109182191. The reversal of 109182138 is 831281901.

It is a junction number, because it is equal to n+sod(n) for n = 109182099 and 109182108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14256 + ... + 20532.

It is an arithmetic number, because the mean of its divisors is an integer number (7382928).

Almost surely, 2109182138 is an apocalyptic number.

109182138 is an abundant number, since it is smaller than the sum of its proper divisors (127071558).

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

109182138 is a wasteful number, since it uses less digits than its factorization.

109182138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6518.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 109182138 is about 10449.0256962073. The cubic root of 109182138 is about 477.9515394695.

The spelling of 109182138 in words is "one hundred nine million, one hundred eighty-two thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 13 26 39 78 223 446 669 1338 2899 5798 6277 8697 12554 17394 18831 37662 81601 163202 244803 489606 1399771 2799542 4199313 8398626 18197023 36394046 54591069 109182138