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1311330299 = 3221407119
BaseRepresentation
bin100111000101001…
…0100111111111011
310101101111110222212
41032022110333323
510141200032144
6334042205335
744332060256
oct11612247773
93341443885
101311330299
11613236954
123071b384b
1317b8a41b6
14c623009d
157a1cc49e
hex4e294ffb

1311330299 has 4 divisors (see below), whose sum is σ = 1311740640. Its totient is φ = 1310919960.

The previous prime is 1311330271. The next prime is 1311330331. The reversal of 1311330299 is 9920331131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1311330299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311330899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200339 + ... + 206780.

It is an arithmetic number, because the mean of its divisors is an integer number (327935160).

Almost surely, 21311330299 is an apocalyptic number.

1311330299 is a deficient number, since it is larger than the sum of its proper divisors (410341).

1311330299 is an equidigital number, since it uses as much as digits as its factorization.

1311330299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410340.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 1311330299 is about 36212.2948596192. The cubic root of 1311330299 is about 1094.5544357361.

The spelling of 1311330299 in words is "one billion, three hundred eleven million, three hundred thirty thousand, two hundred ninety-nine".

Divisors: 1 3221 407119 1311330299