Base | Representation |
---|---|
bin | 11110111110001100100… |
… | …111111110011011001101 |
3 | 21112110200122002001002202 |
4 | 132332030213332123031 |
5 | 234332344213213234 |
6 | 4305431522531245 |
7 | 306524642234420 |
oct | 36761447763315 |
9 | 7473618061082 |
10 | 2128368101069 |
11 | 7506aa341111 |
12 | 2a45aa206b25 |
13 | 125920314a22 |
14 | 7502931d9b7 |
15 | 3a56c94077e |
hex | 1ef8c9fe6cd |
2128368101069 has 32 divisors (see below), whose sum is σ = 2504708084736. Its totient is φ = 1770667879680.
The previous prime is 2128368101009. The next prime is 2128368101099. The reversal of 2128368101069 is 9601018638212.
It is a happy number.
It is not a de Polignac number, because 2128368101069 - 212 = 2128368096973 is a prime.
It is a super-2 number, since 2×21283681010692 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2128368101009) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33845234 + ... + 33908060.
It is an arithmetic number, because the mean of its divisors is an integer number (78272127648).
Almost surely, 22128368101069 is an apocalyptic number.
It is an amenable number.
2128368101069 is a deficient number, since it is larger than the sum of its proper divisors (376339983667).
2128368101069 is a wasteful number, since it uses less digits than its factorization.
2128368101069 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 63585.
The product of its (nonzero) digits is 248832, while the sum is 47.
The spelling of 2128368101069 in words is "two trillion, one hundred twenty-eight billion, three hundred sixty-eight million, one hundred one thousand, sixty-nine".
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