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89995129 = 712856447
BaseRepresentation
bin1010101110100…
…11011101111001
320021100020002221
411113103131321
5141014321004
612532524041
72141642320
oct527233571
9207306087
1089995129
1146888744
1226180621
131584c973
14bd490b7
157d7a354
hex55d3779

89995129 has 4 divisors (see below), whose sum is σ = 102851584. Its totient is φ = 77138676.

The previous prime is 89995111. The next prime is 89995151. The reversal of 89995129 is 92159998.

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 89995129 - 25 = 89995097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89995429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6428217 + ... + 6428230.

It is an arithmetic number, because the mean of its divisors is an integer number (25712896).

Almost surely, 289995129 is an apocalyptic number.

It is an amenable number.

89995129 is a deficient number, since it is larger than the sum of its proper divisors (12856455).

89995129 is a wasteful number, since it uses less digits than its factorization.

89995129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12856454.

The product of its digits is 524880, while the sum is 52.

The square root of 89995129 is about 9486.5762527900. The cubic root of 89995129 is about 448.1323897237.

The spelling of 89995129 in words is "eighty-nine million, nine hundred ninety-five thousand, one hundred twenty-nine".

Divisors: 1 7 12856447 89995129