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82394743 = 297127733
BaseRepresentation
bin1001110100100…
…11111001110111
312202001002100011
410322103321313
5132043112433
612102001051
72020225624
oct472237167
9182032304
1082394743
1142567432
1223716187
13140bb3b2
14ad2b34b
1573783cd
hex4e93e77

82394743 has 4 divisors (see below), whose sum is σ = 82425448. Its totient is φ = 82364040.

The previous prime is 82394737. The next prime is 82394759. The reversal of 82394743 is 34749328.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-82394743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82394696 and 82394705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82392743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10896 + ... + 16837.

It is an arithmetic number, because the mean of its divisors is an integer number (20606362).

Almost surely, 282394743 is an apocalyptic number.

82394743 is a deficient number, since it is larger than the sum of its proper divisors (30705).

82394743 is a wasteful number, since it uses less digits than its factorization.

82394743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30704.

The product of its digits is 145152, while the sum is 40.

The square root of 82394743 is about 9077.1550058375. The cubic root of 82394743 is about 435.1441685351.

The spelling of 82394743 in words is "eighty-two million, three hundred ninety-four thousand, seven hundred forty-three".

Divisors: 1 2971 27733 82394743