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85080812 = 22157135479
BaseRepresentation
bin1010001001000…
…11101011101100
312221002112221012
411010203223230
5133240041222
612235324352
72052114005
oct504435354
9187075835
1085080812
1144031523
12245b06b8
131481bb9b
14b42a1ac
1577091e2
hex5123aec

85080812 has 12 divisors (see below), whose sum is σ = 149840880. Its totient is φ = 42269136.

The previous prime is 85080811. The next prime is 85080829. The reversal of 85080812 is 21808058.

It is not an unprimeable number, because it can be changed into a prime (85080811) 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 3 ways as a sum of consecutive naturals, for example, 67112 + ... + 68367.

It is an arithmetic number, because the mean of its divisors is an integer number (12486740).

Almost surely, 285080812 is an apocalyptic number.

It is an amenable number.

85080812 is a deficient number, since it is larger than the sum of its proper divisors (64760068).

85080812 is a wasteful number, since it uses less digits than its factorization.

85080812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135640 (or 135638 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 85080812 is about 9223.9260621495. The cubic root of 85080812 is about 439.8222629239.

The spelling of 85080812 in words is "eighty-five million, eighty thousand, eight hundred twelve".

Divisors: 1 2 4 157 314 628 135479 270958 541916 21270203 42540406 85080812