Search a number
-
+
85051786 = 2311371803
BaseRepresentation
bin1010001000111…
…00100110001010
312221001002010011
411010130212022
5133233124121
612234542134
72051633251
oct504344612
9187032104
1085051786
1144011736
122459794a
131480b901
14b41d798
1577007e1
hex511c98a

85051786 has 8 divisors (see below), whose sum is σ = 131693184. Its totient is φ = 41154060.

The previous prime is 85051783. The next prime is 85051787. The reversal of 85051786 is 68715058.

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 (85051783) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 685840 + ... + 685963.

It is an arithmetic number, because the mean of its divisors is an integer number (16461648).

Almost surely, 285051786 is an apocalyptic number.

85051786 is a deficient number, since it is larger than the sum of its proper divisors (46641398).

85051786 is a wasteful number, since it uses less digits than its factorization.

85051786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371836.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 85051786 is about 9222.3525198292. The cubic root of 85051786 is about 439.7722409399.

The spelling of 85051786 in words is "eighty-five million, fifty-one thousand, seven hundred eighty-six".

Divisors: 1 2 31 62 1371803 2743606 42525893 85051786