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288902987 is a prime number
BaseRepresentation
bin10001001110000…
…100111101001011
3202010121210101122
4101032010331023
51042424343422
644400105455
710105430522
oct2116047513
9663553348
10288902987
111390950aa
128090528b
1347b13b19
142a5254b9
151a56ad42
hex11384f4b

288902987 has 2 divisors, whose sum is σ = 288902988. Its totient is φ = 288902986.

The previous prime is 288902963. The next prime is 288903007. The reversal of 288902987 is 789209882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 288902987 - 212 = 288898891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (288902917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144451493 + 144451494.

It is an arithmetic number, because the mean of its divisors is an integer number (144451494).

Almost surely, 2288902987 is an apocalyptic number.

288902987 is a deficient number, since it is larger than the sum of its proper divisors (1).

288902987 is an equidigital number, since it uses as much as digits as its factorization.

288902987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The square root of 288902987 is about 16997.1464369758. The cubic root of 288902987 is about 661.0749142833.

The spelling of 288902987 in words is "two hundred eighty-eight million, nine hundred two thousand, nine hundred eighty-seven".