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2013319897 is a prime number
BaseRepresentation
bin111100000000000…
…1101001011011001
312012022102020200121
41320000031023121
513110402214042
6531440233241
7100614636211
oct17000151331
95168366617
102013319897
11943515046
1248230b821
1326115c064
14151565241
15bbb44367
hex7800d2d9

2013319897 has 2 divisors, whose sum is σ = 2013319898. Its totient is φ = 2013319896.

The previous prime is 2013319879. The next prime is 2013319901. The reversal of 2013319897 is 7989133102.

Together with previous prime (2013319879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1819107801 + 194212096 = 42651^2 + 13936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2013319897 is a prime.

It is not a weakly prime, because it can be changed into another prime (2013311897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006659948 + 1006659949.

It is an arithmetic number, because the mean of its divisors is an integer number (1006659949).

Almost surely, 22013319897 is an apocalyptic number.

It is an amenable number.

2013319897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013319897 is an equidigital number, since it uses as much as digits as its factorization.

2013319897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 2013319897 is about 44870.0333964663. The cubic root of 2013319897 is about 1262.7118665708.

The spelling of 2013319897 in words is "two billion, thirteen million, three hundred nineteen thousand, eight hundred ninety-seven".