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82739357 = 17191272017
BaseRepresentation
bin1001110111010…
…00000010011101
312202200121001122
410323220002131
5132140124412
612113220325
72023162421
oct473500235
9182617048
1082739357
1142782338
12238616a5
13141ac1cc
14adbab81
1573e5572
hex4ee809d

82739357 has 16 divisors (see below), whose sum is σ = 92989440. Its totient is φ = 73156608.

The previous prime is 82739329. The next prime is 82739381. The reversal of 82739357 is 75393728.

It is a cyclic number.

It is not a de Polignac number, because 82739357 - 28 = 82739101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82739957) 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 15 ways as a sum of consecutive naturals, for example, 40013 + ... + 42029.

It is an arithmetic number, because the mean of its divisors is an integer number (5811840).

Almost surely, 282739357 is an apocalyptic number.

It is an amenable number.

82739357 is a deficient number, since it is larger than the sum of its proper divisors (10250083).

82739357 is a wasteful number, since it uses less digits than its factorization.

82739357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180.

The product of its digits is 317520, while the sum is 44.

The square root of 82739357 is about 9096.1176883328. The cubic root of 82739357 is about 435.7499846667.

The spelling of 82739357 in words is "eighty-two million, seven hundred thirty-nine thousand, three hundred fifty-seven".

Divisors: 1 17 19 127 323 2017 2159 2413 34289 38323 41021 256159 651491 4354703 4867021 82739357