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390852887 is a prime number
BaseRepresentation
bin10111010010111…
…111000100010111
31000020110101100212
4113102333010113
51300024243022
6102441200035
712454123535
oct2722770427
91006411325
10390852887
11190698617
12aaa9001b
1362c8acc9
1439ca3155
15244a83e2
hex174bf117

390852887 has 2 divisors, whose sum is σ = 390852888. Its totient is φ = 390852886.

The previous prime is 390852883. The next prime is 390852907. The reversal of 390852887 is 788258093.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 390852887 - 22 = 390852883 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (390852883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195426443 + 195426444.

It is an arithmetic number, because the mean of its divisors is an integer number (195426444).

Almost surely, 2390852887 is an apocalyptic number.

390852887 is a deficient number, since it is larger than the sum of its proper divisors (1).

390852887 is an equidigital number, since it uses as much as digits as its factorization.

390852887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 50.

The square root of 390852887 is about 19769.9996712190. Note that the first 3 decimals coincide. The cubic root of 390852887 is about 731.1465606529.

The spelling of 390852887 in words is "three hundred ninety million, eight hundred fifty-two thousand, eight hundred eighty-seven".