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82792712 = 2332172
BaseRepresentation
bin1001110111101…
…01000100001000
312202210022020202
410323311010020
5132143331322
612114311332
72023504112
oct473650410
9182708222
1082792712
1142809432
1223888548
13141ca592
14add23b2
157406292
hex4ef5108

82792712 has 12 divisors (see below), whose sum is σ = 155284605. Its totient is φ = 41383488.

The previous prime is 82792687. The next prime is 82792733. The reversal of 82792712 is 21729728.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 66031876 + 16760836 = 8126^2 + 4094^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=6434.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 24128 + ... + 27344.

Almost surely, 282792712 is an apocalyptic number.

It is an amenable number.

82792712 is a deficient number, since it is larger than the sum of its proper divisors (72491893).

82792712 is an frugal number, since it uses more digits than its factorization.

82792712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440 (or 3219 counting only the distinct ones).

The product of its digits is 28224, while the sum is 38.

The square root of 82792712 is about 9099.0500603085. The cubic root of 82792712 is about 435.8436299223.

It can be divided in two parts, 827 and 92712, that added together give a palindrome (93539).

The spelling of 82792712 in words is "eighty-two million, seven hundred ninety-two thousand, seven hundred twelve".

Divisors: 1 2 4 8 3217 6434 12868 25736 10349089 20698178 41396356 82792712