Search a number
-
+
1312080108 = 223109340009
BaseRepresentation
bin100111000110100…
…1100000011101100
310101102220120112120
41032031030003230
510141343030413
6334110232540
744341332303
oct11615140354
93342816476
101312080108
116136a9229
123074b5750
1317baa7581
14c638743a
157a2c9723
hex4e34c0ec

1312080108 has 12 divisors (see below), whose sum is σ = 3061520280. Its totient is φ = 437360032.

The previous prime is 1312080101. The next prime is 1312080139. The reversal of 1312080108 is 8010802131.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1312080101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54669993 + ... + 54670016.

It is an arithmetic number, because the mean of its divisors is an integer number (255126690).

Almost surely, 21312080108 is an apocalyptic number.

It is an amenable number.

1312080108 is an abundant number, since it is smaller than the sum of its proper divisors (1749440172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312080108 is a wasteful number, since it uses less digits than its factorization.

1312080108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109340016 (or 109340014 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 1312080108 is about 36222.6463417570. The cubic root of 1312080108 is about 1094.7630153728.

Adding to 1312080108 its reverse (8010802131), we get a palindrome (9322882239).

The spelling of 1312080108 in words is "one billion, three hundred twelve million, eighty thousand, one hundred eight".

Divisors: 1 2 3 4 6 12 109340009 218680018 328020027 437360036 656040054 1312080108