Base | Representation |
---|---|
bin | 10111111111011100… |
… | …01001011101110111 |
3 | 1020020122102002000220 |
4 | 23333232021131313 |
5 | 202334314101241 |
6 | 5530031505423 |
7 | 634120036563 |
oct | 137756113567 |
9 | 36218362026 |
10 | 12880222071 |
11 | 550a605532 |
12 | 25b5688273 |
13 | 12a3624ba2 |
14 | 8a28aa6a3 |
15 | 505b92166 |
hex | 2ffb89777 |
12880222071 has 8 divisors (see below), whose sum is σ = 17175306864. Its totient is φ = 8585976000.
The previous prime is 12880222031. The next prime is 12880222073. The reversal of 12880222071 is 17022208821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12880222071 - 214 = 12880205687 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12880222073) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172926 + ... + 235931.
It is an arithmetic number, because the mean of its divisors is an integer number (2146913358).
Almost surely, 212880222071 is an apocalyptic number.
12880222071 is a deficient number, since it is larger than the sum of its proper divisors (4295084793).
12880222071 is a wasteful number, since it uses less digits than its factorization.
12880222071 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 419361.
The product of its (nonzero) digits is 7168, while the sum is 33.
The spelling of 12880222071 in words is "twelve billion, eight hundred eighty million, two hundred twenty-two thousand, seventy-one".
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