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2102203103 = 7111310919267
BaseRepresentation
bin111110101001101…
…0001001011011111
312102111122222112012
41331103101023133
513301130444403
6544333301435
7103044301010
oct17523211337
95374588465
102102203103
11989703340
124a803487b
132766ac880
1415d2a1007
15c484eed8
hex7d4d12df

2102203103 has 32 divisors (see below), whose sum is σ = 2848581120. Its totient is φ = 1498124160.

The previous prime is 2102203091. The next prime is 2102203139. The reversal of 2102203103 is 3013022012.

It is a happy number.

It is not a de Polignac number, because 2102203103 - 26 = 2102203039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102203163) 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 31 ways as a sum of consecutive naturals, for example, 99476 + ... + 118742.

It is an arithmetic number, because the mean of its divisors is an integer number (89018160).

Almost surely, 22102203103 is an apocalyptic number.

2102203103 is a deficient number, since it is larger than the sum of its proper divisors (746378017).

2102203103 is a wasteful number, since it uses less digits than its factorization.

2102203103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19407.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2102203103 is about 45849.7884727945. The cubic root of 2102203103 is about 1281.0268255887.

Adding to 2102203103 its reverse (3013022012), we get a palindrome (5115225115).

The spelling of 2102203103 in words is "two billion, one hundred two million, two hundred three thousand, one hundred three".

Divisors: 1 7 11 13 77 91 109 143 763 1001 1199 1417 8393 9919 15587 19267 109109 134869 211937 250471 1483559 1753297 2100103 2755181 14700721 19286267 23101133 27301339 161707931 191109373 300314729 2102203103