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80825386 = 260896637
BaseRepresentation
bin1001101000101…
…00110000101010
312122002100120211
410310110300222
5131142403021
612004211334
72001001345
oct464246052
9178070524
1080825386
1141695344
1223099b4a
131398bc95
14aa3d45c
1571683e1
hex4d14c2a

80825386 has 8 divisors (see below), whose sum is σ = 121276260. Its totient is φ = 40399968.

The previous prime is 80825377. The next prime is 80825389. The reversal of 80825386 is 68352808.

It can be written as a sum of positive squares in 2 ways, for example, as 63760225 + 17065161 = 7985^2 + 4131^2 .

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

It is not an unprimeable number, because it can be changed into a prime (80825389) by changing a digit.

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, 8860 + ... + 15496.

Almost surely, 280825386 is an apocalyptic number.

80825386 is a deficient number, since it is larger than the sum of its proper divisors (40450874).

80825386 is a wasteful number, since it uses less digits than its factorization.

80825386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12728.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 80825386 is about 8990.2939885190. The cubic root of 80825386 is about 432.3637375767.

The spelling of 80825386 in words is "eighty million, eight hundred twenty-five thousand, three hundred eighty-six".

Divisors: 1 2 6089 6637 12178 13274 40412693 80825386