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2131045103 = 11289197887
BaseRepresentation
bin111111100000101…
…0010101011101111
312111111221022022102
41333001102223233
513331021420403
6551243405315
7103544404325
oct17701225357
95444838272
102131045103
119a3a12800
124b582383b
1327c66a745
1416304bd15
15c714ab88
hex7f052aef

2131045103 has 12 divisors (see below), whose sum is σ = 2368719360. Its totient is φ = 1915536480.

The previous prime is 2131045099. The next prime is 2131045117. The reversal of 2131045103 is 3015401312.

It is not a de Polignac number, because 2131045103 - 22 = 2131045099 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 (2131045123) 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 11 ways as a sum of consecutive naturals, for example, 88175 + ... + 109712.

It is an arithmetic number, because the mean of its divisors is an integer number (197393280).

Almost surely, 22131045103 is an apocalyptic number.

2131045103 is a deficient number, since it is larger than the sum of its proper divisors (237674257).

2131045103 is a wasteful number, since it uses less digits than its factorization.

2131045103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197998 (or 197987 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2131045103 is about 46163.2440692809. The cubic root of 2131045103 is about 1286.8587518787.

Adding to 2131045103 its reverse (3015401312), we get a palindrome (5146446415).

The spelling of 2131045103 in words is "two billion, one hundred thirty-one million, forty-five thousand, one hundred three".

Divisors: 1 11 89 121 979 10769 197887 2176757 17611943 23944327 193731373 2131045103