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80819330 = 2521138303
BaseRepresentation
bin1001101000100…
…11010010000010
312122002001021112
410310103102002
5131142204310
612004123322
72000644604
oct464232202
9178061245
1080819330
1141690839
1223096542
13139892b7
14aa3b174
157166705
hex4d13482

80819330 has 16 divisors (see below), whose sum is σ = 146168064. Its totient is φ = 32173680.

The previous prime is 80819303. The next prime is 80819339. The reversal of 80819330 is 3391808.

It is not an unprimeable number, because it can be changed into a prime (80819339) 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, 17042 + ... + 21261.

It is an arithmetic number, because the mean of its divisors is an integer number (9135504).

Almost surely, 280819330 is an apocalyptic number.

80819330 is a deficient number, since it is larger than the sum of its proper divisors (65348734).

80819330 is a wasteful number, since it uses less digits than its factorization.

80819330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38521.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 80819330 is about 8989.9571745365. The cubic root of 80819330 is about 432.3529387410.

The spelling of 80819330 in words is "eighty million, eight hundred nineteen thousand, three hundred thirty".

Divisors: 1 2 5 10 211 422 1055 2110 38303 76606 191515 383030 8081933 16163866 40409665 80819330