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2313331331 = 18979121889
BaseRepresentation
bin1000100111100010…
…1010001010000011
312222012221102000012
42021320222022003
514214203100311
61021314415135
7111216664133
oct21170521203
95865842005
102313331331
11a878a7083
125468914ab
132ab36210c
1417d33cac3
15d815678b
hex89e2a283

2313331331 has 4 divisors (see below), whose sum is σ = 2313472200. Its totient is φ = 2313190464.

The previous prime is 2313331313. The next prime is 2313331351. The reversal of 2313331331 is 1331333132.

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

It is a cyclic number.

It is not a de Polignac number, because 2313331331 - 214 = 2313314947 is a prime.

It is a super-2 number, since 2×23133313312 = 10703003693972463122, 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 = 2313331297 and 2313331306.

It is not an unprimeable number, because it can be changed into a prime (2313331351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41966 + ... + 79923.

It is an arithmetic number, because the mean of its divisors is an integer number (578368050).

Almost surely, 22313331331 is an apocalyptic number.

2313331331 is a deficient number, since it is larger than the sum of its proper divisors (140869).

2313331331 is a wasteful number, since it uses less digits than its factorization.

2313331331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140868.

The product of its digits is 1458, while the sum is 23.

The square root of 2313331331 is about 48097.1031456157. The cubic root of 2313331331 is about 1322.5515635333.

Adding to 2313331331 its reverse (1331333132), we get a palindrome (3644664463).

The spelling of 2313331331 in words is "two billion, three hundred thirteen million, three hundred thirty-one thousand, three hundred thirty-one".

Divisors: 1 18979 121889 2313331331