Base | Representation |
---|---|
bin | 11110111110001101010… |
… | …010101001101011000110 |
3 | 21112110201102010102001020 |
4 | 132332031102221223012 |
5 | 234332410044211022 |
6 | 4305433002412010 |
7 | 306525136310223 |
oct | 36761522515306 |
9 | 7473642112036 |
10 | 2128379288262 |
11 | 750705692227 |
12 | 2a45b1b01006 |
13 | 125922730a76 |
14 | 7502a9d294a |
15 | 3a56d90035c |
hex | 1ef8d4a9ac6 |
2128379288262 has 64 divisors (see below), whose sum is σ = 4396278620160. Its totient is φ = 686641737600.
The previous prime is 2128379288249. The next prime is 2128379288263. The reversal of 2128379288262 is 2628829738212.
It is a junction number, because it is equal to n+sod(n) for n = 2128379288196 and 2128379288205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2128379288263) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8346187 + ... + 8597417.
It is an arithmetic number, because the mean of its divisors is an integer number (68691853440).
Almost surely, 22128379288262 is an apocalyptic number.
2128379288262 is an abundant number, since it is smaller than the sum of its proper divisors (2267899331898).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2128379288262 is a wasteful number, since it uses less digits than its factorization.
2128379288262 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 251669.
The product of its digits is 18579456, while the sum is 60.
The spelling of 2128379288262 in words is "two trillion, one hundred twenty-eight billion, three hundred seventy-nine million, two hundred eighty-eight thousand, two hundred sixty-two".
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