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1305630142163 = 4677193888431
BaseRepresentation
bin10010111111111101100…
…111101110111011010011
311121211001121110022022222
4102333331213232323103
5132342412304022123
62435444225051255
7163220506045124
oct22777547567323
94554047408288
101305630142163
114637951a5346
12191058a86b2b
13961746764c9
144729b1dc04b
1523e683506c8
hex12ffd9eeed3

1305630142163 has 8 divisors (see below), whose sum is σ = 1310246046720. Its totient is φ = 1301022016840.

The previous prime is 1305630142049. The next prime is 1305630142181. The reversal of 1305630142163 is 3612410365031.

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

It is a cyclic number.

It is not a de Polignac number, because 1305630142163 - 228 = 1305361706707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305630145163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1608443 + ... + 2279988.

It is an arithmetic number, because the mean of its divisors is an integer number (163780755840).

Almost surely, 21305630142163 is an apocalyptic number.

1305630142163 is a deficient number, since it is larger than the sum of its proper divisors (4615904557).

1305630142163 is an equidigital number, since it uses as much as digits as its factorization.

1305630142163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889617.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 1305630142163 in words is "one trillion, three hundred five billion, six hundred thirty million, one hundred forty-two thousand, one hundred sixty-three".

Divisors: 1 467 719 335773 3888431 1815897277 2795781889 1305630142163