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82804242 = 23191814013
BaseRepresentation
bin1001110111101…
…11111000010010
312202210220001210
410323313320102
5132144213432
612114440550
72023552533
oct473677022
9182726053
1082804242
1142817064
1223893156
13142028c1
14add668a
1574098cc
hex4ef7e12

82804242 has 32 divisors (see below), whose sum is σ = 175331520. Its totient is φ = 25997760.

The previous prime is 82804213. The next prime is 82804259. The reversal of 82804242 is 24240828.

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, 18628 + ... + 22640.

It is an arithmetic number, because the mean of its divisors is an integer number (5479110).

Almost surely, 282804242 is an apocalyptic number.

82804242 is an abundant number, since it is smaller than the sum of its proper divisors (92527278).

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

82804242 is a wasteful number, since it uses less digits than its factorization.

82804242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218.

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 82804242 is about 9099.6836208739. The cubic root of 82804242 is about 435.8638613480.

The spelling of 82804242 in words is "eighty-two million, eight hundred four thousand, two hundred forty-two".

Divisors: 1 2 3 6 19 38 57 114 181 362 543 1086 3439 4013 6878 8026 10317 12039 20634 24078 76247 152494 228741 457482 726353 1452706 2179059 4358118 13800707 27601414 41402121 82804242