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2312443321 = 18461125261
BaseRepresentation
bin1000100111010101…
…0001010110111001
312222011021021212221
42021311101112321
514213441141241
61021243404041
7111206305156
oct21165212671
95864237787
102312443321
11a8734a991
12546523621
132ab110b76
1417d18b22d
15d802d5d1
hex89d515b9

2312443321 has 4 divisors (see below), whose sum is σ = 2312587044. Its totient is φ = 2312299600.

The previous prime is 2312443319. The next prime is 2312443339. The reversal of 2312443321 is 1233442132.

2312443321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80353296 + 2232090025 = 8964^2 + 47245^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312443321 - 21 = 2312443319 is a prime.

It is a super-2 number, since 2×23124433212 = 10694788225675018082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2312440321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44170 + ... + 81091.

It is an arithmetic number, because the mean of its divisors is an integer number (578146761).

Almost surely, 22312443321 is an apocalyptic number.

It is an amenable number.

2312443321 is a deficient number, since it is larger than the sum of its proper divisors (143723).

2312443321 is a wasteful number, since it uses less digits than its factorization.

2312443321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143722.

The product of its digits is 3456, while the sum is 25.

The square root of 2312443321 is about 48087.8708303872. The cubic root of 2312443321 is about 1322.3823142050.

Adding to 2312443321 its reverse (1233442132), we get a palindrome (3545885453).

The spelling of 2312443321 in words is "two billion, three hundred twelve million, four hundred forty-three thousand, three hundred twenty-one".

Divisors: 1 18461 125261 2312443321