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89142875 = 531136311
BaseRepresentation
bin1010101000000…
…11011001011011
320012201221000222
411110003121123
5140310033000
612502350255
72131462523
oct524033133
9205657028
1089142875
11463563a8
1225a2b38b
1315611a83
14bba6683
157c5ca85
hex550365b

89142875 has 16 divisors (see below), whose sum is σ = 112252608. Its totient is φ = 70672000.

The previous prime is 89142847. The next prime is 89142919. The reversal of 89142875 is 57824198.

It is not a de Polignac number, because 89142875 - 214 = 89126491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 10970 + ... + 17280.

It is an arithmetic number, because the mean of its divisors is an integer number (7015788).

Almost surely, 289142875 is an apocalyptic number.

89142875 is a deficient number, since it is larger than the sum of its proper divisors (23109733).

89142875 is a wasteful number, since it uses less digits than its factorization.

89142875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6439 (or 6429 counting only the distinct ones).

The product of its digits is 161280, while the sum is 44.

The square root of 89142875 is about 9441.5504553013. The cubic root of 89142875 is about 446.7132958548.

The spelling of 89142875 in words is "eighty-nine million, one hundred forty-two thousand, eight hundred seventy-five".

Divisors: 1 5 25 113 125 565 2825 6311 14125 31555 157775 713143 788875 3565715 17828575 89142875