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289248875 = 5319121789
BaseRepresentation
bin10001001111011…
…001011001101011
3202011021100212022
4101033121121223
51043021431000
644411335055
710111401116
oct2117313153
9664240768
10289248875
11139300a63
1280a5148b
1347c053a6
142a5b557d
151a5d8585
hex113d966b

289248875 has 16 divisors (see below), whose sum is σ = 379984800. Its totient is φ = 219218400.

The previous prime is 289248847. The next prime is 289248881. The reversal of 289248875 is 578842982.

It is not a de Polignac number, because 289248875 - 226 = 222140011 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58520 + ... + 63269.

It is an arithmetic number, because the mean of its divisors is an integer number (23749050).

Almost surely, 2289248875 is an apocalyptic number.

289248875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

289248875 is a deficient number, since it is larger than the sum of its proper divisors (90735925).

289248875 is a wasteful number, since it uses less digits than its factorization.

289248875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121823 (or 121813 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 53.

The square root of 289248875 is about 17007.3182777297. The cubic root of 289248875 is about 661.3386322066.

The spelling of 289248875 in words is "two hundred eighty-nine million, two hundred forty-eight thousand, eight hundred seventy-five".

Divisors: 1 5 19 25 95 125 475 2375 121789 608945 2313991 3044725 11569955 15223625 57849775 289248875