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1311411441 = 3661661327
BaseRepresentation
bin100111000101010…
…1000110011110001
310101101122121022010
41032022220303301
510141210131231
6334044033133
744332545654
oct11612506361
93341577263
101311411441
1161329190a
123072327a9
1317b902102
14c625189b
157a1e6546
hex4e2a8cf1

1311411441 has 8 divisors (see below), whose sum is σ = 1751196544. Its totient is φ = 872950320.

The previous prime is 1311411389. The next prime is 1311411503. The reversal of 1311411441 is 1441141131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1311411441 - 218 = 1311149297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311411641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328681 + ... + 332646.

It is an arithmetic number, because the mean of its divisors is an integer number (218899568).

Almost surely, 21311411441 is an apocalyptic number.

It is an amenable number.

1311411441 is a deficient number, since it is larger than the sum of its proper divisors (439785103).

1311411441 is an equidigital number, since it uses as much as digits as its factorization.

1311411441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661991.

The product of its digits is 192, while the sum is 21.

The square root of 1311411441 is about 36213.4152076271. The cubic root of 1311411441 is about 1094.5770114122.

Adding to 1311411441 its reverse (1441141131), we get a palindrome (2752552572).

The spelling of 1311411441 in words is "one billion, three hundred eleven million, four hundred eleven thousand, four hundred forty-one".

Divisors: 1 3 661 1983 661327 1983981 437137147 1311411441