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80288411 = 73792963
BaseRepresentation
bin1001100100100…
…01101010011011
312121002001222212
410302101222123
5131023212121
611544505335
71663304000
oct462215233
9177061885
1080288411
1141358965
1222a7b24b
1313831748
14a93d8a7
1570ae25b
hex4c91a9b

80288411 has 16 divisors (see below), whose sum is σ = 94848000. Its totient is φ = 67924584.

The previous prime is 80288401. The next prime is 80288431. The reversal of 80288411 is 11488208.

It is not a de Polignac number, because 80288411 - 26 = 80288347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80288401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25616 + ... + 28578.

It is an arithmetic number, because the mean of its divisors is an integer number (5928000).

Almost surely, 280288411 is an apocalyptic number.

80288411 is a deficient number, since it is larger than the sum of its proper divisors (14559589).

80288411 is an equidigital number, since it uses as much as digits as its factorization.

80288411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063 (or 3049 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 80288411 is about 8960.3800700640. The cubic root of 80288411 is about 431.4041192198.

The spelling of 80288411 in words is "eighty million, two hundred eighty-eight thousand, four hundred eleven".

Divisors: 1 7 49 79 343 553 2963 3871 20741 27097 145187 234077 1016309 1638539 11469773 80288411