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289625337 = 3253607181
BaseRepresentation
bin10001010000110…
…101010011111001
3202011222111021100
4101100311103321
51043121002322
644423402013
710114526511
oct2120652371
9664874240
10289625337
11139538891
1280bb3309
1348007851
142a672841
151a65edac
hex114354f9

289625337 has 12 divisors (see below), whose sum is σ = 426241764. Its totient is φ = 189440160.

The previous prime is 289625299. The next prime is 289625359. The reversal of 289625337 is 733526982.

289625337 is a `hidden beast` number, since 28 + 96 + 2 + 533 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 87160896 + 202464441 = 9336^2 + 14229^2 .

It is a de Polignac number, because none of the positive numbers 2k-289625337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 289625292 and 289625301.

It is not an unprimeable number, because it can be changed into a prime (289625387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 303114 + ... + 304067.

It is an arithmetic number, because the mean of its divisors is an integer number (35520147).

Almost surely, 2289625337 is an apocalyptic number.

It is an amenable number.

289625337 is a deficient number, since it is larger than the sum of its proper divisors (136616427).

289625337 is a wasteful number, since it uses less digits than its factorization.

289625337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607240 (or 607237 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 289625337 is about 17018.3823261789. The cubic root of 289625337 is about 661.6254220629.

The spelling of 289625337 in words is "two hundred eighty-nine million, six hundred twenty-five thousand, three hundred thirty-seven".

Divisors: 1 3 9 53 159 477 607181 1821543 5464629 32180593 96541779 289625337