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1930446013 is a prime number
BaseRepresentation
bin111001100010000…
…0100010010111101
311222112110211002111
41303010010102331
512423143233023
6515320054021
765560343326
oct16304042275
94875424074
101930446013
11900760731
1245a604311
13249c33862
1414455144d
15b472400d
hex731044bd

1930446013 has 2 divisors, whose sum is σ = 1930446014. Its totient is φ = 1930446012.

The previous prime is 1930445989. The next prime is 1930446017. The reversal of 1930446013 is 3106440391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1459469209 + 470976804 = 38203^2 + 21702^2 .

It is an emirp because it is prime and its reverse (3106440391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1930446013 - 229 = 1393575101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1930446017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965223006 + 965223007.

It is an arithmetic number, because the mean of its divisors is an integer number (965223007).

Almost surely, 21930446013 is an apocalyptic number.

It is an amenable number.

1930446013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1930446013 is an equidigital number, since it uses as much as digits as its factorization.

1930446013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 1930446013 is about 43936.8411814049. The cubic root of 1930446013 is about 1245.1429679423.

The spelling of 1930446013 in words is "one billion, nine hundred thirty million, four hundred forty-six thousand, thirteen".