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1348635939 = 3779812921
BaseRepresentation
bin101000001100010…
…1000110100100011
310110222200210201020
41100120220310203
510230222322224
6341453540523
745264134130
oct12030506443
93428623636
101348635939
116322a7162
123177a4743
13186536541
14cb181587
157d5eac79
hex50628d23

1348635939 has 16 divisors (see below), whose sum is σ = 2081080320. Its totient is φ = 760893120.

The previous prime is 1348635917. The next prime is 1348635989. The reversal of 1348635939 is 9395368431.

It is a happy number.

It is not a de Polignac number, because 1348635939 - 28 = 1348635683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1348635891 and 1348635900.

It is not an unprimeable number, because it can be changed into a prime (1348635989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404802 + ... + 408119.

It is an arithmetic number, because the mean of its divisors is an integer number (130067520).

Almost surely, 21348635939 is an apocalyptic number.

1348635939 is a deficient number, since it is larger than the sum of its proper divisors (732444381).

1348635939 is an equidigital number, since it uses as much as digits as its factorization.

1348635939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813010.

The product of its digits is 2099520, while the sum is 51.

The square root of 1348635939 is about 36723.7789313682. The cubic root of 1348635939 is about 1104.8370838759.

The spelling of 1348635939 in words is "one billion, three hundred forty-eight million, six hundred thirty-five thousand, nine hundred thirty-nine".

Divisors: 1 3 7 21 79 237 553 1659 812921 2438763 5690447 17071341 64220759 192662277 449545313 1348635939