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89318009 = 1143188833
BaseRepresentation
bin1010101001011…
…10001001111001
320020001211021102
411110232021321
5140331134014
612510221145
72133122234
oct524561171
9206054242
1089318009
1146465a40
1225ab47b5
13156736c1
14bc1041b
157c948de
hex552e279

89318009 has 8 divisors (see below), whose sum is σ = 99704352. Its totient is φ = 79309440.

The previous prime is 89318003. The next prime is 89318023. The reversal of 89318009 is 90081398.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-89318009 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89318003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93944 + ... + 94889.

It is an arithmetic number, because the mean of its divisors is an integer number (12463044).

Almost surely, 289318009 is an apocalyptic number.

It is an amenable number.

89318009 is a deficient number, since it is larger than the sum of its proper divisors (10386343).

89318009 is a wasteful number, since it uses less digits than its factorization.

89318009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188887.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 89318009 is about 9450.8205463864. The cubic root of 89318009 is about 447.0056486565.

The spelling of 89318009 in words is "eighty-nine million, three hundred eighteen thousand, nine".

Divisors: 1 11 43 473 188833 2077163 8119819 89318009