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82742799 = 3237316427
BaseRepresentation
bin1001110111010…
…00111000001111
312202200202210010
410323220320033
5132140232144
612113244303
72023205436
oct473507017
9182622703
1082742799
1142784987
1223863693
13141b0949
14adbc11d
1573e65b9
hex4ee8e0f

82742799 has 16 divisors (see below), whose sum is σ = 116704512. Its totient is φ = 52037568.

The previous prime is 82742773. The next prime is 82742801. The reversal of 82742799 is 99724728.

It is not a de Polignac number, because 82742799 - 212 = 82738703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82742729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3177 + ... + 13250.

It is an arithmetic number, because the mean of its divisors is an integer number (7294032).

Almost surely, 282742799 is an apocalyptic number.

82742799 is a deficient number, since it is larger than the sum of its proper divisors (33961713).

82742799 is a wasteful number, since it uses less digits than its factorization.

82742799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16526.

The product of its digits is 508032, while the sum is 48.

The square root of 82742799 is about 9096.3068879628. The cubic root of 82742799 is about 435.7560270577.

The spelling of 82742799 in words is "eighty-two million, seven hundred forty-two thousand, seven hundred ninety-nine".

Divisors: 1 3 23 69 73 219 1679 5037 16427 49281 377821 1133463 1199171 3597513 27580933 82742799