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2115232223 = 13276116447
BaseRepresentation
bin111111000010011…
…1110000111011111
312110102011221010012
41332010332013133
513312444412343
6545520433435
7103263114536
oct17604760737
95412157105
102115232223
11995aa2305
124b047887b
132792c2100
14160cd331d
15c5a75718
hex7e13e1df

2115232223 has 12 divisors (see below), whose sum is σ = 2293607808. Its totient is φ = 1949837760.

The previous prime is 2115232219. The next prime is 2115232261. The reversal of 2115232223 is 3222325112.

It is not a de Polignac number, because 2115232223 - 22 = 2115232219 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 (2115232723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120386 + ... + 136832.

It is an arithmetic number, because the mean of its divisors is an integer number (191133984).

Almost surely, 22115232223 is an apocalyptic number.

2115232223 is a deficient number, since it is larger than the sum of its proper divisors (178375585).

2115232223 is a wasteful number, since it uses less digits than its factorization.

2115232223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17234 (or 17221 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 2115232223 is about 45991.6538406698. The cubic root of 2115232223 is about 1283.6679101490.

Adding to 2115232223 its reverse (3222325112), we get a palindrome (5337557335).

The spelling of 2115232223 in words is "two billion, one hundred fifteen million, two hundred thirty-two thousand, two hundred twenty-three".

Divisors: 1 13 169 761 9893 16447 128609 213811 2779543 12516167 162710171 2115232223