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82831434 = 2371972177
BaseRepresentation
bin1001110111111…
…10100001001010
312202212021100220
410323332201022
5132201101214
612115210510
72024025030
oct473764112
9182767326
1082831434
1142835534
12238a6a36
13142120aa
14b002550
1574129a9
hex4efe84a

82831434 has 16 divisors (see below), whose sum is σ = 189329088. Its totient is φ = 23666112.

The previous prime is 82831423. The next prime is 82831447. The reversal of 82831434 is 43413828.

It is a super-2 number, since 2×828314342 = 13722092916992712, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 82831395 and 82831404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986047 + ... + 986130.

It is an arithmetic number, because the mean of its divisors is an integer number (11833068).

Almost surely, 282831434 is an apocalyptic number.

82831434 is an abundant number, since it is smaller than the sum of its proper divisors (106497654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82831434 is a wasteful number, since it uses less digits than its factorization.

82831434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972189.

The product of its digits is 18432, while the sum is 33.

The square root of 82831434 is about 9101.1776161110. The cubic root of 82831434 is about 435.9115670883.

The spelling of 82831434 in words is "eighty-two million, eight hundred thirty-one thousand, four hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 42 1972177 3944354 5916531 11833062 13805239 27610478 41415717 82831434