Base | Representation |
---|---|
bin | 111101000011011100… |
… | …1100001011110010011 |
3 | 110112102102211011010020 |
4 | 1322012321201132103 |
5 | 4122004213321024 |
6 | 140122050234523 |
7 | 12321040460361 |
oct | 1720671413623 |
9 | 415372734106 |
10 | 131112245139 |
11 | 50671498397 |
12 | 214b1285a43 |
13 | c496451c55 |
14 | 64bb0b4631 |
15 | 3625817979 |
hex | 1e86e61793 |
131112245139 has 16 divisors (see below), whose sum is σ = 187932449280. Its totient is φ = 81045865440.
The previous prime is 131112245053. The next prime is 131112245203. The reversal of 131112245139 is 931542211131.
It is not a de Polignac number, because 131112245139 - 211 = 131112243091 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131112245239) 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, 24467692 + ... + 24473049.
It is an arithmetic number, because the mean of its divisors is an integer number (11745778080).
Almost surely, 2131112245139 is an apocalyptic number.
131112245139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.
131112245139 is a deficient number, since it is larger than the sum of its proper divisors (56820204141).
131112245139 is a wasteful number, since it uses less digits than its factorization.
131112245139 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48940810.
The product of its digits is 6480, while the sum is 33.
The spelling of 131112245139 in words is "one hundred thirty-one billion, one hundred twelve million, two hundred forty-five thousand, one hundred thirty-nine".
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