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288389195 = 5291988891
BaseRepresentation
bin10001001100000…
…111100001001011
3202002122200121022
4101030013201023
51042311423240
644341103055
710101160553
oct2114074113
9662580538
10288389195
11138874086
12806b7a8b
1347993cc3
142a430163
151a4b89b5
hex1130784b

288389195 has 8 divisors (see below), whose sum is σ = 358000560. Its totient is φ = 222755680.

The previous prime is 288389177. The next prime is 288389279. The reversal of 288389195 is 591983882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-288389195 is a prime.

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, 994301 + ... + 994590.

It is an arithmetic number, because the mean of its divisors is an integer number (44750070).

Almost surely, 2288389195 is an apocalyptic number.

288389195 is a deficient number, since it is larger than the sum of its proper divisors (69611365).

288389195 is a wasteful number, since it uses less digits than its factorization.

288389195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988925.

The product of its digits is 1244160, while the sum is 53.

The square root of 288389195 is about 16982.0256447810. The cubic root of 288389195 is about 660.6827912443.

The spelling of 288389195 in words is "two hundred eighty-eight million, three hundred eighty-nine thousand, one hundred ninety-five".

Divisors: 1 5 29 145 1988891 9944455 57677839 288389195