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2312032231 = 13128016301
BaseRepresentation
bin1000100111001110…
…1100111111100111
312222010111101222101
42021303230333213
514213340012411
61021230512531
7111202643515
oct21163547747
95863441871
102312032231
11a8709a043
12546365747
132aacc8a12
1417d0c14b5
15d7e9b8c1
hex89cecfe7

2312032231 has 8 divisors (see below), whose sum is σ = 2330882928. Its totient is φ = 2293200000.

The previous prime is 2312032193. The next prime is 2312032253. The reversal of 2312032231 is 1322302132.

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 2312032231 - 29 = 2312031719 is a prime.

It is a super-2 number, since 2×23120322312 = 10690986074365674722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2312032199 and 2312032208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312032531) 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, 363781 + ... + 370081.

It is an arithmetic number, because the mean of its divisors is an integer number (291360366).

Almost surely, 22312032231 is an apocalyptic number.

2312032231 is a deficient number, since it is larger than the sum of its proper divisors (18850697).

2312032231 is a wasteful number, since it uses less digits than its factorization.

2312032231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9233.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2312032231 is about 48083.5962777328. The cubic root of 2312032231 is about 1322.3039482681.

Adding to 2312032231 its reverse (1322302132), we get a palindrome (3634334363).

The spelling of 2312032231 in words is "two billion, three hundred twelve million, thirty-two thousand, two hundred thirty-one".

Divisors: 1 131 2801 6301 366931 825431 17649101 2312032231