Search a number
-
+
1030310213 = 1997515929
BaseRepresentation
bin111101011010010…
…100100101000101
32122210201011220112
4331122110211011
54102224411323
6250123042405
734350330602
oct7532244505
92583634815
101030310213
11489646349
12249070405
131355c041a
149ab9b6a9
15606bc178
hex3d694945

1030310213 has 4 divisors (see below), whose sum is σ = 1030828140. Its totient is φ = 1029792288.

The previous prime is 1030310209. The next prime is 1030310221. The reversal of 1030310213 is 3120130301.

1030310213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 257859364 + 772450849 = 16058^2 + 27793^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030310213 - 22 = 1030310209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030310243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255968 + ... + 259961.

It is an arithmetic number, because the mean of its divisors is an integer number (257707035).

Almost surely, 21030310213 is an apocalyptic number.

It is an amenable number.

1030310213 is a deficient number, since it is larger than the sum of its proper divisors (517927).

1030310213 is an equidigital number, since it uses as much as digits as its factorization.

1030310213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517926.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1030310213 is about 32098.4456477257. The cubic root of 1030310213 is about 1010.0030104802.

Adding to 1030310213 its reverse (3120130301), we get a palindrome (4150440514).

The spelling of 1030310213 in words is "one billion, thirty million, three hundred ten thousand, two hundred thirteen".

Divisors: 1 1997 515929 1030310213