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89014721 = 91197711
BaseRepresentation
bin1010100111001…
…00000111000001
320012111102020112
411103210013001
5140241432341
612455521105
72130420065
oct523440701
9205442215
1089014721
1146279094
1225989195
1315598643
14bb71aa5
157c34aeb
hex54e41c1

89014721 has 4 divisors (see below), whose sum is σ = 89113344. Its totient is φ = 88916100.

The previous prime is 89014697. The next prime is 89014747. The reversal of 89014721 is 12741098.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89014721 - 210 = 89013697 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89010721) 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, 47945 + ... + 49766.

It is an arithmetic number, because the mean of its divisors is an integer number (22278336).

Almost surely, 289014721 is an apocalyptic number.

It is an amenable number.

89014721 is a deficient number, since it is larger than the sum of its proper divisors (98623).

89014721 is an equidigital number, since it uses as much as digits as its factorization.

89014721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98622.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 89014721 is about 9434.7613112362. The cubic root of 89014721 is about 446.4991244982.

The spelling of 89014721 in words is "eighty-nine million, fourteen thousand, seven hundred twenty-one".

Divisors: 1 911 97711 89014721