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2320120231 = 111316224617
BaseRepresentation
bin1000101001001010…
…0011100110100111
312222200201022121221
42022102203212213
514222422321411
61022120121211
7111331460632
oct21222434647
95880638557
102320120231
11a90713740
12549006207
132ac89b210
141801c8c19
15d8a48071
hex8a4a39a7

2320120231 has 8 divisors (see below), whose sum is σ = 2725735824. Its totient is φ = 1946953920.

The previous prime is 2320120223. The next prime is 2320120247. The reversal of 2320120231 is 1320210232.

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

It is a cyclic number.

It is not a de Polignac number, because 2320120231 - 23 = 2320120223 is a prime.

It is a super-2 number, since 2×23201202312 = 10765915772590986722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320120531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8112166 + ... + 8112451.

It is an arithmetic number, because the mean of its divisors is an integer number (340716978).

Almost surely, 22320120231 is an apocalyptic number.

2320120231 is a deficient number, since it is larger than the sum of its proper divisors (405615593).

2320120231 is a wasteful number, since it uses less digits than its factorization.

2320120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16224641.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2320120231 is about 48167.6263791356. The cubic root of 2320120231 is about 1323.8440576507.

Adding to 2320120231 its reverse (1320210232), we get a palindrome (3640330463).

Subtracting from 2320120231 its reverse (1320210232), we obtain a palindrome (999909999).

The spelling of 2320120231 in words is "two billion, three hundred twenty million, one hundred twenty thousand, two hundred thirty-one".

Divisors: 1 11 13 143 16224617 178470787 210920021 2320120231