Search a number
-
+
1046428813 is a prime number
BaseRepresentation
bin111110010111110…
…011110010001101
32200221001002110201
4332113303302031
54120341210223
6251500333501
734634332603
oct7627636215
92627032421
101046428813
11497755501
12252544291
13138a44c61
149cd95873
1561d02ead
hex3e5f3c8d

1046428813 has 2 divisors, whose sum is σ = 1046428814. Its totient is φ = 1046428812.

The previous prime is 1046428811. The next prime is 1046428883. The reversal of 1046428813 is 3188246401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 871607529 + 174821284 = 29523^2 + 13222^2 .

It is a cyclic number.

It is not a de Polignac number, because 1046428813 - 21 = 1046428811 is a prime.

Together with 1046428811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1046428811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523214406 + 523214407.

It is an arithmetic number, because the mean of its divisors is an integer number (523214407).

Almost surely, 21046428813 is an apocalyptic number.

It is an amenable number.

1046428813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1046428813 is an equidigital number, since it uses as much as digits as its factorization.

1046428813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 1046428813 is about 32348.5519459527. The cubic root of 1046428813 is about 1015.2427490929.

The spelling of 1046428813 in words is "one billion, forty-six million, four hundred twenty-eight thousand, eight hundred thirteen".