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2103312113 = 72179239803
BaseRepresentation
bin111110101011101…
…1111111011110001
312102120202022210122
41331113133323301
513301421441423
6544413140025
7103056600200
oct17527377361
95376668718
102103312113
1198a2a0581
124a848a615
132769aa5a6
1415d4ad237
15c49bd8c8
hex7d5dfef1

2103312113 has 12 divisors (see below), whose sum is σ = 2460389040. Its totient is φ = 1792759752.

The previous prime is 2103312089. The next prime is 2103312121. The reversal of 2103312113 is 3112133012.

It is not a de Polignac number, because 2103312113 - 214 = 2103295729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2103312091 and 2103312100.

It is not an unprimeable number, because it can be changed into a prime (2103312163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111131 + ... + 128672.

It is an arithmetic number, because the mean of its divisors is an integer number (205032420).

Almost surely, 22103312113 is an apocalyptic number.

It is an amenable number.

2103312113 is a deficient number, since it is larger than the sum of its proper divisors (357076927).

2103312113 is a wasteful number, since it uses less digits than its factorization.

2103312113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239996 (or 239989 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2103312113 is about 45861.8808271096. The cubic root of 2103312113 is about 1281.2520530826.

Adding to 2103312113 its reverse (3112133012), we get a palindrome (5215445125).

The spelling of 2103312113 in words is "two billion, one hundred three million, three hundred twelve thousand, one hundred thirteen".

Divisors: 1 7 49 179 1253 8771 239803 1678621 11750347 42924737 300473159 2103312113