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1313112103 = 1817399817
BaseRepresentation
bin100111001000100…
…1000000000100111
310101111212000011121
41032101020000213
510142124041403
6334144314411
744353161112
oct11621100047
93344760147
101313112103
11614243616
12307912a07
1317c079214
14c6575579
157a4303bd
hex4e448027

1313112103 has 8 divisors (see below), whose sum is σ = 1322288240. Its totient is φ = 1303957440.

The previous prime is 1313112091. The next prime is 1313112109. The reversal of 1313112103 is 3012113131.

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

It is a cyclic number.

It is not a de Polignac number, because 1313112103 - 25 = 1313112071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313112109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128851 + ... + 138667.

It is an arithmetic number, because the mean of its divisors is an integer number (165286030).

Almost surely, 21313112103 is an apocalyptic number.

1313112103 is a deficient number, since it is larger than the sum of its proper divisors (9176137).

1313112103 is an equidigital number, since it uses as much as digits as its factorization.

1313112103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10737.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1313112103 is about 36236.8887047440. Note that the first 3 decimals coincide. The cubic root of 1313112103 is about 1095.0499627613.

Adding to 1313112103 its reverse (3012113131), we get a palindrome (4325225234).

The spelling of 1313112103 in words is "one billion, three hundred thirteen million, one hundred twelve thousand, one hundred three".

Divisors: 1 181 739 9817 133759 1776877 7254763 1313112103