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82743101 = 711820443
BaseRepresentation
bin1001110111010…
…00111100111101
312202200210012022
410323220330331
5132140234401
612113245525
72023206350
oct473507475
9182623168
1082743101
1142785131
12238638a5
13141b0b1c
14adbc297
1573e671b
hex4ee8f3d

82743101 has 4 divisors (see below), whose sum is σ = 94563552. Its totient is φ = 70922652.

The previous prime is 82743083. The next prime is 82743103. The reversal of 82743101 is 10134728.

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 82743101 - 214 = 82726717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82743103) 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, 5910215 + ... + 5910228.

It is an arithmetic number, because the mean of its divisors is an integer number (23640888).

Almost surely, 282743101 is an apocalyptic number.

It is an amenable number.

82743101 is a deficient number, since it is larger than the sum of its proper divisors (11820451).

82743101 is a wasteful number, since it uses less digits than its factorization.

82743101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11820450.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 82743101 is about 9096.3234880912. The cubic root of 82743101 is about 435.7565572072.

Adding to 82743101 its reverse (10134728), we get a palindrome (92877829).

The spelling of 82743101 in words is "eighty-two million, seven hundred forty-three thousand, one hundred one".

Divisors: 1 7 11820443 82743101