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80827828 = 2287723041
BaseRepresentation
bin1001101000101…
…01010110110100
312122002110221021
410310111112310
5131142442303
612004230524
72001011434
oct464252664
9178073837
1080827828
1141697164
122309b444
1313990123
14aa402c4
157168ebd
hex4d155b4

80827828 has 12 divisors (see below), whose sum is σ = 141616132. Its totient is φ = 40366080.

The previous prime is 80827811. The next prime is 80827837. The reversal of 80827828 is 82872808.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42536484 + 38291344 = 6522^2 + 6188^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8013 + ... + 15028.

Almost surely, 280827828 is an apocalyptic number.

It is an amenable number.

80827828 is a deficient number, since it is larger than the sum of its proper divisors (60788304).

80827828 is a wasteful number, since it uses less digits than its factorization.

80827828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23922 (or 23920 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 43.

The square root of 80827828 is about 8990.4298006269. The cubic root of 80827828 is about 432.3680919084.

The spelling of 80827828 in words is "eighty million, eight hundred twenty-seven thousand, eight hundred twenty-eight".

Divisors: 1 2 4 877 1754 3508 23041 46082 92164 20206957 40413914 80827828