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2103122113 = 4744747279
BaseRepresentation
bin111110101011011…
…0001100011000001
312102120101200011121
41331112301203001
513301344401423
6544405112241
7103055146231
oct17526614301
95376350147
102103122113
1198a180854
124a83b8681
13276941c71
1415d45dcc1
15c498245d
hex7d5b18c1

2103122113 has 4 divisors (see below), whose sum is σ = 2147869440. Its totient is φ = 2058374788.

The previous prime is 2103122089. The next prime is 2103122117. The reversal of 2103122113 is 3112213012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2103122113 - 213 = 2103113921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103122117) 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, 22373593 + ... + 22373686.

It is an arithmetic number, because the mean of its divisors is an integer number (536967360).

Almost surely, 22103122113 is an apocalyptic number.

It is an amenable number.

2103122113 is a deficient number, since it is larger than the sum of its proper divisors (44747327).

2103122113 is an equidigital number, since it uses as much as digits as its factorization.

2103122113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44747326.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2103122113 is about 45859.8093432583. The cubic root of 2103122113 is about 1281.2134718343.

Adding to 2103122113 its reverse (3112213012), we get a palindrome (5215335125).

The spelling of 2103122113 in words is "two billion, one hundred three million, one hundred twenty-two thousand, one hundred thirteen".

Divisors: 1 47 44747279 2103122113