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82983109 = 117543919
BaseRepresentation
bin1001111001000…
…11100011000101
312210010222102111
410330203203011
5132220424414
612122341021
72025226156
oct474434305
9183128374
1082983109
1142929490
122395a771
1314266141
14b04192d
1574428c4
hex4f238c5

82983109 has 4 divisors (see below), whose sum is σ = 90527040. Its totient is φ = 75439180.

The previous prime is 82983091. The next prime is 82983133. The reversal of 82983109 is 90138928.

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 82983109 - 211 = 82981061 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82983169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3771949 + ... + 3771970.

It is an arithmetic number, because the mean of its divisors is an integer number (22631760).

Almost surely, 282983109 is an apocalyptic number.

It is an amenable number.

82983109 is a deficient number, since it is larger than the sum of its proper divisors (7543931).

82983109 is a wasteful number, since it uses less digits than its factorization.

82983109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7543930.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 82983109 is about 9109.5065179185. The cubic root of 82983109 is about 436.1774748827.

It can be divided in two parts, 829 and 83109, that added together give a palindrome (83938).

The spelling of 82983109 in words is "eighty-two million, nine hundred eighty-three thousand, one hundred nine".

Divisors: 1 11 7543919 82983109