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288386090 = 2567430427
BaseRepresentation
bin10001001100000…
…110110000101010
3202002122112100022
4101030012300222
51042311323330
644341040442
710101145526
oct2114066052
9662575308
10288386090
11138871813
12806b6122
1347992775
142a42cd86
151a4b7ae5
hex11306c2a

288386090 has 16 divisors (see below), whose sum is σ = 526843872. Its totient is φ = 113632464.

The previous prime is 288386089. The next prime is 288386093. The reversal of 288386090 is 90683882.

It is not an unprimeable number, because it can be changed into a prime (288386093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214544 + ... + 215883.

It is an arithmetic number, because the mean of its divisors is an integer number (32927742).

Almost surely, 2288386090 is an apocalyptic number.

288386090 is a deficient number, since it is larger than the sum of its proper divisors (238457782).

288386090 is a wasteful number, since it uses less digits than its factorization.

288386090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430501.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 288386090 is about 16981.9342243456. The cubic root of 288386090 is about 660.6804201112.

The spelling of 288386090 in words is "two hundred eighty-eight million, three hundred eighty-six thousand, ninety".

Divisors: 1 2 5 10 67 134 335 670 430427 860854 2152135 4304270 28838609 57677218 144193045 288386090