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82681352 = 23136113033
BaseRepresentation
bin1001110110110…
…01111000001000
312202120122111022
410323121320020
5132131300402
612112052012
72022531335
oct473317010
9182518438
1082681352
11427427a6
1223834008
131418b9a0
14ada398c
1573d32a2
hex4ed9e08

82681352 has 32 divisors (see below), whose sum is σ = 169702680. Its totient is φ = 37532160.

The previous prime is 82681351. The next prime is 82681367. The reversal of 82681352 is 25318628.

It can be written as a sum of positive squares in 4 ways, for example, as 37871716 + 44809636 = 6154^2 + 6694^2 .

It is not an unprimeable number, because it can be changed into a prime (82681351) 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 7 ways as a sum of consecutive naturals, for example, 173 + ... + 12860.

Almost surely, 282681352 is an apocalyptic number.

It is an amenable number.

82681352 is an abundant number, since it is smaller than the sum of its proper divisors (87021328).

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

82681352 is a wasteful number, since it uses less digits than its factorization.

82681352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13113 (or 13109 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 82681352 is about 9092.9286811236. The cubic root of 82681352 is about 435.6481323454.

The spelling of 82681352 in words is "eighty-two million, six hundred eighty-one thousand, three hundred fifty-two".

Divisors: 1 2 4 8 13 26 52 61 104 122 244 488 793 1586 3172 6344 13033 26066 52132 104264 169429 338858 677716 795013 1355432 1590026 3180052 6360104 10335169 20670338 41340676 82681352