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1685288029 is a prime number
BaseRepresentation
bin110010001110011…
…0111010001011101
311100110011111120011
41210130313101131
511422413204104
6435121323221
756522466115
oct14434672135
94313144504
101685288029
11795334927
123b0496511
1320b1c8069
1411db76045
159ce49904
hex6473745d

1685288029 has 2 divisors, whose sum is σ = 1685288030. Its totient is φ = 1685288028.

The previous prime is 1685288023. The next prime is 1685288063. The reversal of 1685288029 is 9208825861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1671583225 + 13704804 = 40885^2 + 3702^2 .

It is a cyclic number.

It is not a de Polignac number, because 1685288029 - 215 = 1685255261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1685288023) 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, 842644014 + 842644015.

It is an arithmetic number, because the mean of its divisors is an integer number (842644015).

Almost surely, 21685288029 is an apocalyptic number.

It is an amenable number.

1685288029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1685288029 is an equidigital number, since it uses as much as digits as its factorization.

1685288029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 49.

The square root of 1685288029 is about 41052.2597307383. The cubic root of 1685288029 is about 1190.0303711383.

The spelling of 1685288029 in words is "one billion, six hundred eighty-five million, two hundred eighty-eight thousand, twenty-nine".