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1318663011 = 3181213417
BaseRepresentation
bin100111010011001…
…0011001101100011
310101220022000120210
41032212103031203
510200034204021
6334503305203
744451310401
oct11646231543
93356260523
101318663011
11617395046
1230974b203
13180270993
14c71bc471
157ab79e76
hex4e993363

1318663011 has 12 divisors (see below), whose sum is σ = 1768116696. Its totient is φ = 874186560.

The previous prime is 1318663009. The next prime is 1318663013. The reversal of 1318663011 is 1103668131.

1318663011 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1318663009) and next prime (1318663013).

It is not a de Polignac number, because 1318663011 - 21 = 1318663009 is a prime.

It is a super-2 number, since 2×13186630112 = 3477744273159172242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1318663011.

It is not an unprimeable number, because it can be changed into a prime (1318663013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91575 + ... + 104991.

It is an arithmetic number, because the mean of its divisors is an integer number (147343058).

Almost surely, 21318663011 is an apocalyptic number.

1318663011 is a deficient number, since it is larger than the sum of its proper divisors (449453685).

1318663011 is an equidigital number, since it uses as much as digits as its factorization.

1318663011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13782 (or 13601 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1318663011 is about 36313.3998821372. The cubic root of 1318663011 is about 1096.5908254735.

The spelling of 1318663011 in words is "one billion, three hundred eighteen million, six hundred sixty-three thousand, eleven".

Divisors: 1 3 181 543 13417 32761 40251 98283 2428477 7285431 439554337 1318663011