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2131031203 = 71916022791
BaseRepresentation
bin111111100000100…
…1111010010100011
312111111220121020121
41333001033102203
513331020444303
6551243221111
7103544315650
oct17701172243
95444817217
102131031203
119a3a03314
124b5817797
1327c664312
14163046c27
15c71469bd
hex7f04f4a3

2131031203 has 8 divisors (see below), whose sum is σ = 2563646720. Its totient is φ = 1730461320.

The previous prime is 2131031197. The next prime is 2131031237. The reversal of 2131031203 is 3021301312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-2131031203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131031803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8011263 + ... + 8011528.

It is an arithmetic number, because the mean of its divisors is an integer number (320455840).

Almost surely, 22131031203 is an apocalyptic number.

2131031203 is a deficient number, since it is larger than the sum of its proper divisors (432615517).

2131031203 is a wasteful number, since it uses less digits than its factorization.

2131031203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16022817.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2131031203 is about 46163.0935163578. The cubic root of 2131031203 is about 1286.8559539753.

Adding to 2131031203 its reverse (3021301312), we get a palindrome (5152332515).

The spelling of 2131031203 in words is "two billion, one hundred thirty-one million, thirty-one thousand, two hundred three".

Divisors: 1 7 19 133 16022791 112159537 304433029 2131031203