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3040221311 = 9091334421
BaseRepresentation
bin1011010100110110…
…0001100001111111
321211212201020121022
42311031201201333
522211244040221
61221402254355
7135224311661
oct26515414177
97755636538
103040221311
1113201422a6
1270a1b73bb
13395b27a2a
1420bab6531
1512bd8b4ab
hexb536187f

3040221311 has 4 divisors (see below), whose sum is σ = 3040564824. Its totient is φ = 3039877800.

The previous prime is 3040221287. The next prime is 3040221323. The reversal of 3040221311 is 1131220403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1131220403 = 9091124433.

It is a cyclic number.

It is not a de Polignac number, because 3040221311 - 226 = 2973112447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3040221311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3040221361) 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, 158120 + ... + 176301.

It is an arithmetic number, because the mean of its divisors is an integer number (760141206).

Almost surely, 23040221311 is an apocalyptic number.

3040221311 is a deficient number, since it is larger than the sum of its proper divisors (343513).

3040221311 is an equidigital number, since it uses as much as digits as its factorization.

3040221311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343512.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3040221311 is about 55138.2019202658. The cubic root of 3040221311 is about 1448.6664411291. Note that the first 3 decimals are identical.

Adding to 3040221311 its reverse (1131220403), we get a palindrome (4171441714).

The spelling of 3040221311 in words is "three billion, forty million, two hundred twenty-one thousand, three hundred eleven".

Divisors: 1 9091 334421 3040221311