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2111301109 = 194173137271
BaseRepresentation
bin111110111010111…
…1110010111110101
312110010210012122101
41331311332113311
513310443113414
6545300302101
7103214522551
oct17565762765
95403705571
102111301109
11993857855
124ab0a1931
132785469c8
1416058c861
15c554aa74
hex7dd7e5f5

2111301109 has 32 divisors (see below), whose sum is σ = 2333237760. Its totient is φ = 1903564800.

The previous prime is 2111301091. The next prime is 2111301113. The reversal of 2111301109 is 9011031112.

It is a cyclic number.

It is not a de Polignac number, because 2111301109 - 225 = 2077746677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111304109) 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 31 ways as a sum of consecutive naturals, for example, 7790644 + ... + 7790914.

It is an arithmetic number, because the mean of its divisors is an integer number (72913680).

Almost surely, 22111301109 is an apocalyptic number.

It is an amenable number.

2111301109 is a deficient number, since it is larger than the sum of its proper divisors (221936651).

2111301109 is a wasteful number, since it uses less digits than its factorization.

2111301109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 2111301109 is about 45948.8967114554. The cubic root of 2111301109 is about 1282.8721938548.

2111301109 divided by its sum of digits (19) gives a palindrome (111121111).

The spelling of 2111301109 in words is "two billion, one hundred eleven million, three hundred one thousand, one hundred nine".

Divisors: 1 19 41 73 137 271 779 1387 2603 2993 5149 5617 10001 11111 19783 37127 56867 106723 190019 211109 375877 410041 705413 811103 1522207 2710271 7790779 15410957 28921933 51495149 111121111 2111301109