Base | Representation |
---|---|
bin | 10011000111101001011… |
… | …101101001010101111101 |
3 | 11122121100200120102202210 |
4 | 103013221131221111331 |
5 | 133011312230410000 |
6 | 2443331120411033 |
7 | 163632134531412 |
oct | 23075135512575 |
9 | 4577320512683 |
10 | 1313881888125 |
11 | 46723a089204 |
12 | 192780476a79 |
13 | 96b8b0c0921 |
14 | 478410b8109 |
15 | 2429c9c7350 |
hex | 131e976957d |
1313881888125 has 20 divisors (see below), whose sum is σ = 2189102412992. Its totient is φ = 700737006000.
The previous prime is 1313881888097. The next prime is 1313881888127. The reversal of 1313881888125 is 5218881883131.
It is not a de Polignac number, because 1313881888125 - 214 = 1313881871741 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 (1313881888127) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 350366629 + ... + 350370378.
Almost surely, 21313881888125 is an apocalyptic number.
1313881888125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1313881888125 is a deficient number, since it is larger than the sum of its proper divisors (875220524867).
1313881888125 is an frugal number, since it uses more digits than its factorization.
1313881888125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 700737030 (or 700737015 counting only the distinct ones).
The product of its digits is 2949120, while the sum is 57.
The spelling of 1313881888125 in words is "one trillion, three hundred thirteen billion, eight hundred eighty-one million, eight hundred eighty-eight thousand, one hundred twenty-five".
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