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82294400 = 275225717
BaseRepresentation
bin1001110011110…
…11011010000000
312201211222200202
410321323122000
5132031410100
612055504332
72016330236
oct471733200
9181758622
1082294400
11424a9001
12236880a8
1314084816
14ad02956
1573587d5
hex4e7b680

82294400 has 48 divisors (see below), whose sum is σ = 203300790. Its totient is φ = 32916480.

The previous prime is 82294369. The next prime is 82294403. The reversal of 82294400 is 449228.

It can be written as a sum of positive squares in 3 ways, for example, as 64384576 + 17909824 = 8024^2 + 4232^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (82294403) 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 5 ways as a sum of consecutive naturals, for example, 9659 + ... + 16058.

Almost surely, 282294400 is an apocalyptic number.

82294400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

82294400 is an abundant number, since it is smaller than the sum of its proper divisors (121006390).

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

82294400 is a wasteful number, since it uses less digits than its factorization.

82294400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25741 (or 25724 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 82294400 is about 9071.6260945875. The cubic root of 82294400 is about 434.9674525346.

The spelling of 82294400 in words is "eighty-two million, two hundred ninety-four thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 320 400 640 800 1600 3200 25717 51434 102868 128585 205736 257170 411472 514340 642925 822944 1028680 1285850 1645888 2057360 2571700 3291776 4114720 5143400 8229440 10286800 16458880 20573600 41147200 82294400