| Base | Representation |
|---|---|
| bin | 11001111110101000… |
| … | …11101110000001000 |
| 3 | 1100000000011202110000 |
| 4 | 30333110131300020 |
| 5 | 212030442344430 |
| 6 | 10223545323000 |
| 7 | 1002424336515 |
| oct | 147724356010 |
| 9 | 40000152400 |
| 10 | 13947231240 |
| 11 | 5a07937298 |
| 12 | 2852a96460 |
| 13 | 14136c4467 |
| 14 | 96449c30c |
| 15 | 5696ace60 |
| hex | 33f51dc08 |
13947231240 has 160 divisors (see below), whose sum is σ = 46937773080. Its totient is φ = 3714536448.
The previous prime is 13947231217. The next prime is 13947231253. The reversal of 13947231240 is 4213274931.
It is a happy number.
13947231240 is a `hidden beast` number, since 1 + 394 + 7 + 23 + 1 + 240 = 666.
13947231240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 5843990916 + 8103240324 = 76446^2 + 90018^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 13947231195 and 13947231204.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3085462 + ... + 3089978.
Almost surely, 213947231240 is an apocalyptic number.
13947231240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13947231240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23468886540).
13947231240 is an abundant number, since it is smaller than the sum of its proper divisors (32990541840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13947231240 is a wasteful number, since it uses less digits than its factorization.
13947231240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5493 (or 5480 counting only the distinct ones).
The product of its (nonzero) digits is 36288, while the sum is 36.
The spelling of 13947231240 in words is "thirteen billion, nine hundred forty-seven million, two hundred thirty-one thousand, two hundred forty".
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