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80528327 = 11193131231
BaseRepresentation
bin1001100110011…
…00001111000111
312121112021002122
410303030033013
5131103401302
611554000155
71665323315
oct463141707
9177467078
1080528327
1141502140
1222b7605b
13138b69c9
14a9a30b5
15710a3a2
hex4ccc3c7

80528327 has 16 divisors (see below), whose sum is σ = 92843520. Its totient is φ = 69076800.

The previous prime is 80528321. The next prime is 80528339. The reversal of 80528327 is 72382508.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80528327 - 26 = 80528263 is a prime.

It is a super-2 number, since 2×805283272 = 12969622898837858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80528321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64802 + ... + 66032.

It is an arithmetic number, because the mean of its divisors is an integer number (5802720).

Almost surely, 280528327 is an apocalyptic number.

80528327 is a deficient number, since it is larger than the sum of its proper divisors (12315193).

80528327 is a wasteful number, since it uses less digits than its factorization.

80528327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 80528327 is about 8973.7576856075. The cubic root of 80528327 is about 431.8333959042.

The spelling of 80528327 in words is "eighty million, five hundred twenty-eight thousand, three hundred twenty-seven".

Divisors: 1 11 19 209 313 1231 3443 5947 13541 23389 65417 257279 385303 4238333 7320757 80528327