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1668763027 = 17195166449
BaseRepresentation
bin110001101110111…
…0100110110010011
311022022001221112001
41203131310312103
511404200404102
6433331214431
756232152221
oct14335646623
94268057461
101668763027
11786a783a8
123a6a47417
13207960559
1411b8b3b11
159b783487
hex63774d93

1668763027 has 8 divisors (see below), whose sum is σ = 1859922000. Its totient is φ = 1487937024.

The previous prime is 1668763013. The next prime is 1668763051. The reversal of 1668763027 is 7203678661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1668763027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1668763097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2582902 + ... + 2583547.

It is an arithmetic number, because the mean of its divisors is an integer number (232490250).

Almost surely, 21668763027 is an apocalyptic number.

1668763027 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1668763027 is a deficient number, since it is larger than the sum of its proper divisors (191158973).

1668763027 is a wasteful number, since it uses less digits than its factorization.

1668763027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166485.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 1668763027 is about 40850.4960434999. The cubic root of 1668763027 is about 1186.1279952235.

The spelling of 1668763027 in words is "one billion, six hundred sixty-eight million, seven hundred sixty-three thousand, twenty-seven".

Divisors: 1 17 19 323 5166449 87829633 98162531 1668763027