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1348837939 = 2819478481
BaseRepresentation
bin101000001100101…
…1010001000110011
310111000002001210201
41100121122020303
510230300303224
6341502140031
745265635061
oct12031321063
93430061721
101348837939
116324249a9
12317881617
131865a7477
14cb1d5031
157d63aa44
hex5065a233

1348837939 has 4 divisors (see below), whose sum is σ = 1349319240. Its totient is φ = 1348356640.

The previous prime is 1348837901. The next prime is 1348837943. The reversal of 1348837939 is 9397388431.

It is a happy number.

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 1348837939 - 219 = 1348313651 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 1348837939.

It is not an unprimeable number, because it can be changed into a prime (1348837979) 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, 236422 + ... + 242059.

It is an arithmetic number, because the mean of its divisors is an integer number (337329810).

Almost surely, 21348837939 is an apocalyptic number.

1348837939 is a deficient number, since it is larger than the sum of its proper divisors (481301).

1348837939 is an equidigital number, since it uses as much as digits as its factorization.

1348837939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481300.

The product of its digits is 3919104, while the sum is 55.

The square root of 1348837939 is about 36726.5290900188. The cubic root of 1348837939 is about 1104.8922423124.

The spelling of 1348837939 in words is "one billion, three hundred forty-eight million, eight hundred thirty-seven thousand, nine hundred thirty-nine".

Divisors: 1 2819 478481 1348837939