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80812204 = 22111836641
BaseRepresentation
bin1001101000100…
…01100010101100
312122001200111121
410310101202230
5131141442304
612004030324
72000615044
oct464214254
9178050447
1080812204
1141686450
12230923a4
1313985c95
14aa38724
157164554
hex4d118ac

80812204 has 12 divisors (see below), whose sum is σ = 154277928. Its totient is φ = 36732800.

The previous prime is 80812201. The next prime is 80812219. The reversal of 80812204 is 40221808.

It is a super-2 number, since 2×808122042 = 13061224630675232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80812201) 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, 918277 + ... + 918364.

It is an arithmetic number, because the mean of its divisors is an integer number (12856494).

Almost surely, 280812204 is an apocalyptic number.

It is an amenable number.

80812204 is a deficient number, since it is larger than the sum of its proper divisors (73465724).

80812204 is a wasteful number, since it uses less digits than its factorization.

80812204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836656 (or 1836654 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 80812204 is about 8989.5608346571. The cubic root of 80812204 is about 432.3402312299.

The spelling of 80812204 in words is "eighty million, eight hundred twelve thousand, two hundred four".

Divisors: 1 2 4 11 22 44 1836641 3673282 7346564 20203051 40406102 80812204