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289037684 = 22135558417
BaseRepresentation
bin10001001110100…
…101110101110100
3202010212122011102
4101032211311310
51042443201214
644403025232
710106531315
oct2116456564
9663778142
10289037684
11139177321
128096b218
1347b60220
142a55c60c
151a595bde
hex113a5d74

289037684 has 12 divisors (see below), whose sum is σ = 544724964. Its totient is φ = 133401984.

The previous prime is 289037657. The next prime is 289037719. The reversal of 289037684 is 486730982.

It can be written as a sum of positive squares in 2 ways, for example, as 31114084 + 257923600 = 5578^2 + 16060^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2779157 + ... + 2779260.

It is an arithmetic number, because the mean of its divisors is an integer number (45393747).

Almost surely, 2289037684 is an apocalyptic number.

It is an amenable number.

289037684 is a deficient number, since it is larger than the sum of its proper divisors (255687280).

289037684 is a wasteful number, since it uses less digits than its factorization.

289037684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5558434 (or 5558432 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 289037684 is about 17001.1083168128. The cubic root of 289037684 is about 661.1776373157.

The spelling of 289037684 in words is "two hundred eighty-nine million, thirty-seven thousand, six hundred eighty-four".

Divisors: 1 2 4 13 26 52 5558417 11116834 22233668 72259421 144518842 289037684