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82342657 = 393120947
BaseRepresentation
bin1001110100001…
…11001100000001
312201221102220001
410322013030001
5132034431112
612100520001
72016621025
oct472071401
9181842801
1082342657
1142531291
12236b0001
13140a0787
14ad16385
157367c57
hex4e87301

82342657 has 4 divisors (see below), whose sum is σ = 82367536. Its totient is φ = 82317780.

The previous prime is 82342643. The next prime is 82342681. The reversal of 82342657 is 75624328.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82342657 - 215 = 82309889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82342357) by changing a digit.

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, 6543 + ... + 14404.

It is an arithmetic number, because the mean of its divisors is an integer number (20591884).

Almost surely, 282342657 is an apocalyptic number.

It is an amenable number.

82342657 is a deficient number, since it is larger than the sum of its proper divisors (24879).

82342657 is a wasteful number, since it uses less digits than its factorization.

82342657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24878.

The product of its digits is 80640, while the sum is 37.

The square root of 82342657 is about 9074.2854815131. The cubic root of 82342657 is about 435.0524567911.

The spelling of 82342657 in words is "eighty-two million, three hundred forty-two thousand, six hundred fifty-seven".

Divisors: 1 3931 20947 82342657