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80827018 = 2371092257
BaseRepresentation
bin1001101000101…
…01001010001010
312122002102211021
410310111022022
5131142431033
612004223054
72001006166
oct464251212
9178072737
1080827018
1141696598
122309aa8a
131398c94c
14aa3dca6
157168b2d
hex4d1528a

80827018 has 8 divisors (see below), whose sum is σ = 124517412. Its totient is φ = 39321216.

The previous prime is 80827003. The next prime is 80827063. The reversal of 80827018 is 81072808.

It can be written as a sum of positive squares in 2 ways, for example, as 67453369 + 13373649 = 8213^2 + 3657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546055 + ... + 546202.

Almost surely, 280827018 is an apocalyptic number.

80827018 is a deficient number, since it is larger than the sum of its proper divisors (43690394).

80827018 is a wasteful number, since it uses less digits than its factorization.

80827018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092296.

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 80827018 is about 8990.3847526121. The cubic root of 80827018 is about 432.3666476066.

The spelling of 80827018 in words is "eighty million, eight hundred twenty-seven thousand, eighteen".

Divisors: 1 2 37 74 1092257 2184514 40413509 80827018