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2131033103 = 19112159637
BaseRepresentation
bin111111100000100…
…1111110000001111
312111111220200211222
41333001033300033
513331021024403
6551243233555
7103544324333
oct17701176017
95444820758
102131033103
119a3a04791
124b58188bb
1327c665144
141630477c3
15c7147338
hex7f04fc0f

2131033103 has 4 divisors (see below), whose sum is σ = 2243192760. Its totient is φ = 2018873448.

The previous prime is 2131033067. The next prime is 2131033111. The reversal of 2131033103 is 3013301312.

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-2131033103 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 (2131033133) 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, 56079800 + ... + 56079837.

It is an arithmetic number, because the mean of its divisors is an integer number (560798190).

Almost surely, 22131033103 is an apocalyptic number.

2131033103 is a deficient number, since it is larger than the sum of its proper divisors (112159657).

2131033103 is a wasteful number, since it uses less digits than its factorization.

2131033103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112159656.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 2131033103 is about 46163.1140955634. The cubic root of 2131033103 is about 1286.8563364232.

Adding to 2131033103 its reverse (3013301312), we get a palindrome (5144334415).

Subtracting 2131033103 from its reverse (3013301312), we obtain a square (882268209 = 297032).

The spelling of 2131033103 in words is "two billion, one hundred thirty-one million, thirty-three thousand, one hundred three".

Divisors: 1 19 112159637 2131033103