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289525893 = 31011039277
BaseRepresentation
bin10001010000011…
…101000010000101
3202011210102212020
4101100131002011
51043104312033
644421313353
710113633546
oct2120350205
9664712766
10289525893
111394800a8
1280b65859
1347ca14c7
142a6484cd
151a6406b3
hex1141d085

289525893 has 16 divisors (see below), whose sum is σ = 393684096. Its totient is φ = 189230400.

The previous prime is 289525853. The next prime is 289525897. The reversal of 289525893 is 398525982.

It is not a de Polignac number, because 289525893 - 29 = 289525381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289525897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26571 + ... + 35847.

It is an arithmetic number, because the mean of its divisors is an integer number (24605256).

Almost surely, 2289525893 is an apocalyptic number.

It is an amenable number.

289525893 is a deficient number, since it is larger than the sum of its proper divisors (104158203).

289525893 is a wasteful number, since it uses less digits than its factorization.

289525893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9484.

The product of its digits is 1555200, while the sum is 51.

The square root of 289525893 is about 17015.4604110497. The cubic root of 289525893 is about 661.5496894965.

The spelling of 289525893 in words is "two hundred eighty-nine million, five hundred twenty-five thousand, eight hundred ninety-three".

Divisors: 1 3 101 103 303 309 9277 10403 27831 31209 936977 955531 2810931 2866593 96508631 289525893