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83027728 = 2471743607
BaseRepresentation
bin1001111001011…
…10011100010000
312210020020122001
410330232130100
5132223341403
612123323344
72025503230
oct474563420
9183206561
1083027728
1142959a63
1223980554
1314280544
14b053cc0
157450c1d
hex4f2e710

83027728 has 40 divisors (see below), whose sum is σ = 194666112. Its totient is φ = 33489408.

The previous prime is 83027719. The next prime is 83027729. The reversal of 83027728 is 82772038.

It is a hoax number, since the sum of its digits (37) 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 (83027729) 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, 19900 + ... + 23707.

Almost surely, 283027728 is an apocalyptic number.

It is an amenable number.

83027728 is an abundant number, since it is smaller than the sum of its proper divisors (111638384).

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

83027728 is a wasteful number, since it uses less digits than its factorization.

83027728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43639 (or 43633 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 83027728 is about 9111.9552237706. The cubic root of 83027728 is about 436.2556366351.

The spelling of 83027728 in words is "eighty-three million, twenty-seven thousand, seven hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 17 28 34 56 68 112 119 136 238 272 476 952 1904 43607 87214 174428 305249 348856 610498 697712 741319 1220996 1482638 2441992 2965276 4883984 5189233 5930552 10378466 11861104 20756932 41513864 83027728