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2111310223 = 111761185089
BaseRepresentation
bin111110111011000…
…0000100110001111
312110010210200010221
41331312000212033
513310443411343
6545300412211
7103214561251
oct17566004617
95403720127
102111310223
11993863690
124ab0a7067
1327854abb9
14160591cd1
15c554d5ed
hex7dd8098f

2111310223 has 16 divisors (see below), whose sum is σ = 2478725280. Its totient is φ = 1776844800.

The previous prime is 2111310217. The next prime is 2111310251. The reversal of 2111310223 is 3220131112.

It is a cyclic number.

It is not a de Polignac number, because 2111310223 - 225 = 2077755791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111310197 and 2111310206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111310203) 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 15 ways as a sum of consecutive naturals, for example, 81138 + ... + 103951.

It is an arithmetic number, because the mean of its divisors is an integer number (154920330).

Almost surely, 22111310223 is an apocalyptic number.

2111310223 is a deficient number, since it is larger than the sum of its proper divisors (367415057).

2111310223 is a wasteful number, since it uses less digits than its factorization.

2111310223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185178.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2111310223 is about 45948.9958867438. The cubic root of 2111310223 is about 1282.8740398067.

Adding to 2111310223 its reverse (3220131112), we get a palindrome (5331441335).

The spelling of 2111310223 in words is "two billion, one hundred eleven million, three hundred ten thousand, two hundred twenty-three".

Divisors: 1 11 17 61 187 671 1037 11407 185089 2035979 3146513 11290429 34611643 124194719 191937293 2111310223