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1670068839 = 3556689613
BaseRepresentation
bin110001110001011…
…0011101001100111
311022101112021202110
41203202303221213
511410014200324
6433415212103
756246231235
oct14342635147
94271467673
101670068839
1178778a48a
123a7377033
13207cc9a1a
1411bb33955
159b940329
hex638b3a67

1670068839 has 4 divisors (see below), whose sum is σ = 2226758456. Its totient is φ = 1113379224.

The previous prime is 1670068837. The next prime is 1670068853. The reversal of 1670068839 is 9388600761.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1670068839 - 21 = 1670068837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670068837) 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 in 3 ways as a sum of consecutive naturals, for example, 278344804 + ... + 278344809.

It is an arithmetic number, because the mean of its divisors is an integer number (556689614).

Almost surely, 21670068839 is an apocalyptic number.

1670068839 is a deficient number, since it is larger than the sum of its proper divisors (556689617).

1670068839 is an equidigital number, since it uses as much as digits as its factorization.

1670068839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556689616.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 1670068839 is about 40866.4757350080. The cubic root of 1670068839 is about 1186.4372974480.

The spelling of 1670068839 in words is "one billion, six hundred seventy million, sixty-eight thousand, eight hundred thirty-nine".

Divisors: 1 3 556689613 1670068839