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85051066 = 2257165469
BaseRepresentation
bin1010001000111…
…00011010111010
312221001001010111
411010130122322
5133233113231
612234534534
72051631202
oct504343272
9187031114
1085051066
1144011141
122459744a
131480b499
14b41d402
1577004b1
hex511c6ba

85051066 has 8 divisors (see below), whose sum is σ = 128073780. Its totient is φ = 42359808.

The previous prime is 85051027. The next prime is 85051067. The reversal of 85051066 is 66015058.

It can be written as a sum of positive squares in 2 ways, for example, as 55577025 + 29474041 = 7455^2 + 5429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (85051067) 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, 82221 + ... + 83248.

Almost surely, 285051066 is an apocalyptic number.

85051066 is a deficient number, since it is larger than the sum of its proper divisors (43022714).

85051066 is a wasteful number, since it uses less digits than its factorization.

85051066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165728.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 85051066 is about 9222.3134841535. The cubic root of 85051066 is about 439.7709999826.

The spelling of 85051066 in words is "eighty-five million, fifty-one thousand, sixty-six".

Divisors: 1 2 257 514 165469 330938 42525533 85051066