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898874249 = 71319519881
BaseRepresentation
bin110101100100111…
…011101110001001
32022122101112122212
4311210323232021
53320102433444
6225105554505
731163206430
oct6544735611
92278345585
10898874249
11421433589
12211045a35
131142c1170
1487546117
1553da819e
hex3593bb89

898874249 has 16 divisors (see below), whose sum is σ = 1164535680. Its totient is φ = 673764480.

The previous prime is 898874243. The next prime is 898874309. The reversal of 898874249 is 942478898.

It is a cyclic number.

It is not a de Polignac number, because 898874249 - 220 = 897825673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (898874243) 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 15 ways as a sum of consecutive naturals, for example, 258212 + ... + 261669.

It is an arithmetic number, because the mean of its divisors is an integer number (72783480).

Almost surely, 2898874249 is an apocalyptic number.

It is an amenable number.

898874249 is a deficient number, since it is larger than the sum of its proper divisors (265661431).

898874249 is a wasteful number, since it uses less digits than its factorization.

898874249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519920.

The product of its digits is 9289728, while the sum is 59.

The square root of 898874249 is about 29981.2316124605. The cubic root of 898874249 is about 965.0866608527.

The spelling of 898874249 in words is "eight hundred ninety-eight million, eight hundred seventy-four thousand, two hundred forty-nine".

Divisors: 1 7 13 19 91 133 247 1729 519881 3639167 6758453 9877739 47309171 69144173 128410607 898874249