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82612818 = 2331529867
BaseRepresentation
bin1001110110010…
…01001001010010
312202110011111000
410323021021102
5132122102233
612110402430
72022124461
oct473111122
9182404430
1082612818
11426a6262
1223800416
1314166732
14ad869d8
1573bcd13
hex4ec9252

82612818 has 16 divisors (see below), whose sum is σ = 183584160. Its totient is φ = 27537588.

The previous prime is 82612813. The next prime is 82612841. The reversal of 82612818 is 81821628.

It is a super-2 number, since 2×826128182 = 13649755395802248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82612811) 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, 764880 + ... + 764987.

It is an arithmetic number, because the mean of its divisors is an integer number (11474010).

Almost surely, 282612818 is an apocalyptic number.

82612818 is an abundant number, since it is smaller than the sum of its proper divisors (100971342).

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

82612818 is a wasteful number, since it uses less digits than its factorization.

82612818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529878 (or 1529872 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 82612818 is about 9089.1593670702. The cubic root of 82612818 is about 435.5277304993.

The spelling of 82612818 in words is "eighty-two million, six hundred twelve thousand, eight hundred eighteen".

Divisors: 1 2 3 6 9 18 27 54 1529867 3059734 4589601 9179202 13768803 27537606 41306409 82612818