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89875481 = 175286793
BaseRepresentation
bin1010101101101…
…10010000011001
320021010010222112
411112312100121
5141002003411
612530202105
72140633433
oct526662031
9207103875
1089875481
1146806863
1226123335
131580a377
14bd17653
157d54b8b
hex55b6419

89875481 has 4 divisors (see below), whose sum is σ = 95162292. Its totient is φ = 84588672.

The previous prime is 89875463. The next prime is 89875507. The reversal of 89875481 is 18457898.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72403081 + 17472400 = 8509^2 + 4180^2 .

It is a cyclic number.

It is not a de Polignac number, because 89875481 - 210 = 89874457 is a prime.

It is a super-2 number, since 2×898754812 = 16155204169962722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89875411) 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, 2643380 + ... + 2643413.

It is an arithmetic number, because the mean of its divisors is an integer number (23790573).

Almost surely, 289875481 is an apocalyptic number.

It is an amenable number.

89875481 is a deficient number, since it is larger than the sum of its proper divisors (5286811).

89875481 is a wasteful number, since it uses less digits than its factorization.

89875481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5286810.

The product of its digits is 645120, while the sum is 50.

The square root of 89875481 is about 9480.2679814444. The cubic root of 89875481 is about 447.9337051801.

The spelling of 89875481 in words is "eighty-nine million, eight hundred seventy-five thousand, four hundred eighty-one".

Divisors: 1 17 5286793 89875481