Search a number
-
+
87448089 = 3195926003
BaseRepresentation
bin1010011011001…
…01101000011001
320002112211020010
411031211220121
5134341314324
612402152133
72111203461
oct515455031
9202484203
1087448089
11453a9053
1225352649
131516a541
14b884ba1
157a25829
hex5365a19

87448089 has 16 divisors (see below), whose sum is σ = 124819200. Its totient is φ = 54292176.

The previous prime is 87448037. The next prime is 87448099. The reversal of 87448089 is 98084478.

It is not a de Polignac number, because 87448089 - 211 = 87446041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87448099) 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 15 ways as a sum of consecutive naturals, for example, 9639 + ... + 16364.

It is an arithmetic number, because the mean of its divisors is an integer number (7801200).

Almost surely, 287448089 is an apocalyptic number.

It is an amenable number.

87448089 is a deficient number, since it is larger than the sum of its proper divisors (37371111).

87448089 is a wasteful number, since it uses less digits than its factorization.

87448089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26084.

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 87448089 is about 9351.3682956025. The cubic root of 87448089 is about 443.8641892473.

The spelling of 87448089 in words is "eighty-seven million, four hundred forty-eight thousand, eighty-nine".

Divisors: 1 3 19 57 59 177 1121 3363 26003 78009 494057 1482171 1534177 4602531 29149363 87448089