Search a number
-
+
87085306 = 2711565489
BaseRepresentation
bin1010011000011…
…01000011111010
320001212101120201
411030031003322
5134243212211
612350312414
72105133010
oct514150372
9201771521
1087085306
1145180530
12251b870a
1315071389
14b7cc8b0
1579a30c1
hex530d0fa

87085306 has 16 divisors (see below), whose sum is σ = 162861120. Its totient is φ = 33929280.

The previous prime is 87085261. The next prime is 87085321. The reversal of 87085306 is 60358078.

It is a super-2 number, since 2×870853062 = 15167701042227272, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 282591 + ... + 282898.

It is an arithmetic number, because the mean of its divisors is an integer number (10178820).

Almost surely, 287085306 is an apocalyptic number.

87085306 is a deficient number, since it is larger than the sum of its proper divisors (75775814).

87085306 is a wasteful number, since it uses less digits than its factorization.

87085306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565509.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 87085306 is about 9331.9508142724. The cubic root of 87085306 is about 443.2495405106.

The spelling of 87085306 in words is "eighty-seven million, eighty-five thousand, three hundred six".

Divisors: 1 2 7 11 14 22 77 154 565489 1130978 3958423 6220379 7916846 12440758 43542653 87085306