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82825051 = 106977479
BaseRepresentation
bin1001110111111…
…00111101011011
312202211221121111
410323330331123
5132200400201
612115121151
72024000311
oct473747533
9182757544
1082825051
1142830761
12238a31b7
131420c20a
14b0000b1
157410b51
hex4efcf5b

82825051 has 4 divisors (see below), whose sum is σ = 82903600. Its totient is φ = 82746504.

The previous prime is 82825033. The next prime is 82825063. The reversal of 82825051 is 15052828.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82825051 - 25 = 82825019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82825651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37671 + ... + 39808.

It is an arithmetic number, because the mean of its divisors is an integer number (20725900).

Almost surely, 282825051 is an apocalyptic number.

82825051 is a deficient number, since it is larger than the sum of its proper divisors (78549).

82825051 is a wasteful number, since it uses less digits than its factorization.

82825051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78548.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 82825051 is about 9100.8269404489. The cubic root of 82825051 is about 435.9003696685.

Adding to 82825051 its reverse (15052828), we get a palindrome (97877879).

The spelling of 82825051 in words is "eighty-two million, eight hundred twenty-five thousand, fifty-one".

Divisors: 1 1069 77479 82825051