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288011238 = 23291655237
BaseRepresentation
bin10001001010101…
…011001111100110
3202001221111010220
4101022223033212
51042212324423
644325025210
710065024624
oct2112531746
9661844126
10288011238
11138636119
1280555206
1347890c68
142a372514
151a4419e3
hex112ab3e6

288011238 has 16 divisors (see below), whose sum is σ = 595885680. Its totient is φ = 92693216.

The previous prime is 288011237. The next prime is 288011257. The reversal of 288011238 is 832110882.

288011238 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 288011199 and 288011208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288011237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827445 + ... + 827792.

It is an arithmetic number, because the mean of its divisors is an integer number (37242855).

Almost surely, 2288011238 is an apocalyptic number.

288011238 is an abundant number, since it is smaller than the sum of its proper divisors (307874442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

288011238 is a wasteful number, since it uses less digits than its factorization.

288011238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655271.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 288011238 is about 16970.8938479975. The cubic root of 288011238 is about 660.3940392641.

The spelling of 288011238 in words is "two hundred eighty-eight million, eleven thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 29 58 87 174 1655237 3310474 4965711 9931422 48001873 96003746 144005619 288011238