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89198825 = 5219187787
BaseRepresentation
bin1010101000100…
…01000011101001
320012211202210012
411110101003221
5140313330300
612503501305
72132114612
oct524210351
9205752705
1089198825
1146394441
1225a57835
1315631391
14bbbcc09
157c6e435
hex55110e9

89198825 has 12 divisors (see below), whose sum is σ = 116428560. Its totient is φ = 67602960.

The previous prime is 89198803. The next prime is 89198827. The reversal of 89198825 is 52889198.

It is a de Polignac number, because none of the positive numbers 2k-89198825 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89198827) 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 11 ways as a sum of consecutive naturals, for example, 93419 + ... + 94368.

It is an arithmetic number, because the mean of its divisors is an integer number (9702380).

Almost surely, 289198825 is an apocalyptic number.

It is an amenable number.

89198825 is a deficient number, since it is larger than the sum of its proper divisors (27229735).

89198825 is a wasteful number, since it uses less digits than its factorization.

89198825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187816 (or 187811 counting only the distinct ones).

The product of its digits is 414720, while the sum is 50.

The square root of 89198825 is about 9444.5129572678. The cubic root of 89198825 is about 446.8067352975.

The spelling of 89198825 in words is "eighty-nine million, one hundred ninety-eight thousand, eight hundred twenty-five".

Divisors: 1 5 19 25 95 475 187787 938935 3567953 4694675 17839765 89198825