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1445068819 is a prime number
BaseRepresentation
bin101011000100010…
…0000000000010011
310201201011002202101
41112020200000103
510424414200234
6355220501231
750544611425
oct12610400023
93651132671
101445068819
11681781657
12343b4a817
131a04cb50c
14d9cc4815
1586ce8814
hex56220013

1445068819 has 2 divisors, whose sum is σ = 1445068820. Its totient is φ = 1445068818.

The previous prime is 1445068777. The next prime is 1445068831. The reversal of 1445068819 is 9188605441.

It is a strong prime.

It is an emirp because it is prime and its reverse (9188605441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1445068819 - 229 = 908197907 is a prime.

It is a super-2 number, since 2×14450688192 = 4176447783292109522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1445068619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722534409 + 722534410.

It is an arithmetic number, because the mean of its divisors is an integer number (722534410).

Almost surely, 21445068819 is an apocalyptic number.

1445068819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445068819 is an equidigital number, since it uses as much as digits as its factorization.

1445068819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 1445068819 is about 38014.0608064963. The cubic root of 1445068819 is about 1130.5666667322.

The spelling of 1445068819 in words is "one billion, four hundred forty-five million, sixty-eight thousand, eight hundred nineteen".