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80152728 = 2337514447
BaseRepresentation
bin1001100011100…
…00100010011000
312120211011212120
410301300202120
5131004341403
611541541240
71662200265
oct461604230
9176734776
1080152728
1141275a27
1222a14820
13137b4a66
14a90626c
157083e53
hex4c70898

80152728 has 32 divisors (see below), whose sum is σ = 200693760. Its totient is φ = 26676000.

The previous prime is 80152711. The next prime is 80152729. The reversal of 80152728 is 82725108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80152729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15801 + ... + 20247.

It is an arithmetic number, because the mean of its divisors is an integer number (6271680).

Almost surely, 280152728 is an apocalyptic number.

It is an amenable number.

80152728 is an abundant number, since it is smaller than the sum of its proper divisors (120541032).

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

80152728 is a wasteful number, since it uses less digits than its factorization.

80152728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5207 (or 5203 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 80152728 is about 8952.8055937790. The cubic root of 80152728 is about 431.1609657826.

The spelling of 80152728 in words is "eighty million, one hundred fifty-two thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 751 1502 2253 3004 4447 4506 6008 8894 9012 13341 17788 18024 26682 35576 53364 106728 3339697 6679394 10019091 13358788 20038182 26717576 40076364 80152728