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2312122330 = 25724718617
BaseRepresentation
bin1000100111010000…
…0010111111011010
312222010122222120101
42021310002333122
514213400403310
61021232450014
7111203500300
oct21164027732
95863588511
102312122330
11a87150801
125463a990a
132ab02aa2b
1417d106270
15d7eb843a
hex89d02fda

2312122330 has 24 divisors (see below), whose sum is σ = 4841302068. Its totient is φ = 792727488.

The previous prime is 2312122303. The next prime is 2312122333. The reversal of 2312122330 is 332212132.

2312122330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2187152289 + 124970041 = 46767^2 + 11179^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2312122298 and 2312122307.

It is not an unprimeable number, because it can be changed into a prime (2312122333) 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, 2358819 + ... + 2359798.

Almost surely, 22312122330 is an apocalyptic number.

2312122330 is an abundant number, since it is smaller than the sum of its proper divisors (2529179738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2312122330 is a wasteful number, since it uses less digits than its factorization.

2312122330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4718638 (or 4718631 counting only the distinct ones).

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

The square root of 2312122330 is about 48084.5331681613. The cubic root of 2312122330 is about 1322.3211246024.

Adding to 2312122330 its reverse (332212132), we get a palindrome (2644334462).

It can be divided in two parts, 23121 and 22330, that added together give a triangular number (45451 = T301).

The spelling of 2312122330 in words is "two billion, three hundred twelve million, one hundred twenty-two thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 4718617 9437234 23593085 33030319 47186170 66060638 165151595 231212233 330303190 462424466 1156061165 2312122330