Base | Representation |
---|---|
bin | 10110100111010011… |
… | …01111000111010110 |
3 | 1011100010011222222210 |
4 | 23103221233013112 |
5 | 144331030234204 |
6 | 5324420534250 |
7 | 606601450530 |
oct | 132351570726 |
9 | 34303158883 |
10 | 12140868054 |
11 | 5170226957 |
12 | 2429b51386 |
13 | 11b63b6cc3 |
14 | 83260a850 |
15 | 4b0ce9389 |
hex | 2d3a6f1d6 |
12140868054 has 32 divisors (see below), whose sum is σ = 27754016256. Its totient is φ = 3468386880.
The previous prime is 12140868043. The next prime is 12140868059. The reversal of 12140868054 is 45086804121.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12140868059) 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, 493719 + ... + 517725.
It is an arithmetic number, because the mean of its divisors is an integer number (867313008).
Almost surely, 212140868054 is an apocalyptic number.
12140868054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
12140868054 is an abundant number, since it is smaller than the sum of its proper divisors (15613148202).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12140868054 is a wasteful number, since it uses less digits than its factorization.
12140868054 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36060.
The product of its (nonzero) digits is 61440, while the sum is 39.
The spelling of 12140868054 in words is "twelve billion, one hundred forty million, eight hundred sixty-eight thousand, fifty-four".
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