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85790084 = 2221447521
BaseRepresentation
bin1010001110100…
…00110110000100
312222102120212112
411013100312010
5133430240314
612302440152
72061126602
oct507206604
9188376775
1085790084
11444763a6
1224893058
1314a09983
14b572872
1577e943e
hex51d0d84

85790084 has 6 divisors (see below), whose sum is σ = 150132654. Its totient is φ = 42895040.

The previous prime is 85790077. The next prime is 85790099. The reversal of 85790084 is 48009758.

It can be written as a sum of positive squares in only one way, i.e., 49308484 + 36481600 = 7022^2 + 6040^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10723757 + ... + 10723764.

It is an arithmetic number, because the mean of its divisors is an integer number (25022109).

Almost surely, 285790084 is an apocalyptic number.

It is an amenable number.

85790084 is a deficient number, since it is larger than the sum of its proper divisors (64342570).

85790084 is a wasteful number, since it uses less digits than its factorization.

85790084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21447525 (or 21447523 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 85790084 is about 9262.2936684171. The cubic root of 85790084 is about 441.0410678825.

The spelling of 85790084 in words is "eighty-five million, seven hundred ninety thousand, eighty-four".

Divisors: 1 2 4 21447521 42895042 85790084