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165139082 = 2223479773
BaseRepresentation
bin10011101011111…
…01001010001010
3102111201221020022
421311331022022
5314233422312
624215300442
74043442023
oct1165751212
9374657208
10165139082
1185242489
124737a722
132829c944
1417d09c4a
15e770172
hex9d7d28a

165139082 has 16 divisors (see below), whose sum is σ = 249661440. Its totient is φ = 81921552.

The previous prime is 165139081. The next prime is 165139097. The reversal of 165139082 is 280931561.

It is not an unprimeable number, because it can be changed into a prime (165139081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213248 + ... + 214020.

It is an arithmetic number, because the mean of its divisors is an integer number (15603840).

Almost surely, 2165139082 is an apocalyptic number.

165139082 is a deficient number, since it is larger than the sum of its proper divisors (84522358).

165139082 is a wasteful number, since it uses less digits than its factorization.

165139082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 165139082 is about 12850.6451978101. The cubic root of 165139082 is about 548.6347206226.

The spelling of 165139082 in words is "one hundred sixty-five million, one hundred thirty-nine thousand, eighty-two".

Divisors: 1 2 223 446 479 773 958 1546 106817 172379 213634 344758 370267 740534 82569541 165139082