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288895930 = 2543671851
BaseRepresentation
bin10001001110000…
…011001110111010
3202010121102201021
4101032003032322
51042424132210
644400013054
710105401121
oct2116031672
9663542637
10288895930
1113908a874
128090118a
1347b1084b
142a522ab8
151a568bda
hex113833ba

288895930 has 16 divisors (see below), whose sum is σ = 532106784. Its totient is φ = 112870800.

The previous prime is 288895897. The next prime is 288895991. The reversal of 288895930 is 39598882.

It is a happy number.

288895930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335496 + ... + 336355.

It is an arithmetic number, because the mean of its divisors is an integer number (33256674).

Almost surely, 2288895930 is an apocalyptic number.

288895930 is a deficient number, since it is larger than the sum of its proper divisors (243210854).

288895930 is a wasteful number, since it uses less digits than its factorization.

288895930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671901.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The square root of 288895930 is about 16996.9388420386. The cubic root of 288895930 is about 661.0695315725.

The spelling of 288895930 in words is "two hundred eighty-eight million, eight hundred ninety-five thousand, nine hundred thirty".

Divisors: 1 2 5 10 43 86 215 430 671851 1343702 3359255 6718510 28889593 57779186 144447965 288895930