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89002660 = 2256172953
BaseRepresentation
bin1010100111000…
…01001010100100
320012110210200211
411103201022210
5140241041120
612455345204
72130336655
oct523411244
9205423624
1089002660
114627001a
1225982204
1315592cc6
14bb6b52c
157c3125a
hex54e12a4

89002660 has 24 divisors (see below), whose sum is σ = 189972216. Its totient is φ = 35016960.

The previous prime is 89002657. The next prime is 89002679. The reversal of 89002660 is 6620098.

It can be written as a sum of positive squares in 4 ways, for example, as 2304 + 89000356 = 48^2 + 9434^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 35257 + ... + 37696.

It is an arithmetic number, because the mean of its divisors is an integer number (7915509).

Almost surely, 289002660 is an apocalyptic number.

It is an amenable number.

89002660 is an abundant number, since it is smaller than the sum of its proper divisors (100969556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89002660 is a wasteful number, since it uses less digits than its factorization.

89002660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73023 (or 73021 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 89002660 is about 9434.1221107213. The cubic root of 89002660 is about 446.4789575373.

The spelling of 89002660 in words is "eighty-nine million, two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 72953 145906 291812 364765 729530 1459060 4450133 8900266 17800532 22250665 44501330 89002660