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2040303331 = 11217991883
BaseRepresentation
bin111100110011100…
…1000111011100011
312021012012011000001
41321213020323203
513134304201311
6534242440431
7101363202133
oct17147107343
95235164001
102040303331
11957775100
1248b363117
13266918ca1
14154d8aac3
15be1c44c1
hex799c8ee3

2040303331 has 12 divisors (see below), whose sum is σ = 2374570296. Its totient is φ = 1745712320.

The previous prime is 2040303329. The next prime is 2040303341. The reversal of 2040303331 is 1333030402.

It is not a de Polignac number, because 2040303331 - 21 = 2040303329 is a prime.

It is a super-2 number, since 2×20403033312 = 8325675364979391122, 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 = 2040303299 and 2040303308.

It is not an unprimeable number, because it can be changed into a prime (2040303341) 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, 493885 + ... + 497998.

It is an arithmetic number, because the mean of its divisors is an integer number (197880858).

Almost surely, 22040303331 is an apocalyptic number.

2040303331 is a deficient number, since it is larger than the sum of its proper divisors (334266965).

2040303331 is a wasteful number, since it uses less digits than its factorization.

2040303331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991922 (or 991911 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 2040303331 is about 45169.7169683406. The cubic root of 2040303331 is about 1268.3279981142.

Adding to 2040303331 its reverse (1333030402), we get a palindrome (3373333733).

It can be divided in two parts, 2040 and 303331, that added together give a triangular number (305371 = T781).

The spelling of 2040303331 in words is "two billion, forty million, three hundred three thousand, three hundred thirty-one".

Divisors: 1 11 17 121 187 2057 991883 10910713 16862011 120017843 185482121 2040303331