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2103030103 = 6731388509
BaseRepresentation
bin111110101011001…
…1011000101010111
312102120012222221211
41331112123011113
513301333430403
6544403122251
7103054314046
oct17526330527
95376188854
102103030103
1198a118709
124a8373387
1327690c115
1415d43855d
15c496506d
hex7d59b157

2103030103 has 4 divisors (see below), whose sum is σ = 2134418680. Its totient is φ = 2071641528.

The previous prime is 2103030079. The next prime is 2103030113. The reversal of 2103030103 is 3010303012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2103030103 is a prime.

It is a super-2 number, since 2×21030301032 = 8845471228248381218, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103030113) 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 in 3 ways as a sum of consecutive naturals, for example, 15694188 + ... + 15694321.

It is an arithmetic number, because the mean of its divisors is an integer number (533604670).

Almost surely, 22103030103 is an apocalyptic number.

2103030103 is a deficient number, since it is larger than the sum of its proper divisors (31388577).

2103030103 is an equidigital number, since it uses as much as digits as its factorization.

2103030103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31388576.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 2103030103 is about 45858.8061663188. The cubic root of 2103030103 is about 1281.1947875220.

Adding to 2103030103 its reverse (3010303012), we get a palindrome (5113333115).

The spelling of 2103030103 in words is "two billion, one hundred three million, thirty thousand, one hundred three".

Divisors: 1 67 31388509 2103030103