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82160144 = 2411466819
BaseRepresentation
bin1001110010110…
…10101000010000
312201121011112022
410321122220100
5132013111034
612052551012
72015230643
oct471325020
9181534468
1082160144
1142417150
1223622468
1314038691
14aca9a5a
15732db2e
hex4e5aa10

82160144 has 20 divisors (see below), whose sum is σ = 173657040. Its totient is φ = 37345440.

The previous prime is 82160087. The next prime is 82160171. The reversal of 82160144 is 44106128.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233234 + ... + 233585.

It is an arithmetic number, because the mean of its divisors is an integer number (8682852).

Almost surely, 282160144 is an apocalyptic number.

It is an amenable number.

82160144 is an abundant number, since it is smaller than the sum of its proper divisors (91496896).

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

82160144 is a wasteful number, since it uses less digits than its factorization.

82160144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466838 (or 466832 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 82160144 is about 9064.2232982203. The cubic root of 82160144 is about 434.7307868740.

The spelling of 82160144 in words is "eighty-two million, one hundred sixty thousand, one hundred forty-four".

Divisors: 1 2 4 8 11 16 22 44 88 176 466819 933638 1867276 3734552 5135009 7469104 10270018 20540036 41080072 82160144