Base | Representation |
---|---|
bin | 11011110100110100100… |
… | …001111111000000010000 |
3 | 20202210120110002101000000 |
4 | 123310310201333000100 |
5 | 222312031243131033 |
6 | 4022231550130000 |
7 | 255101440610115 |
oct | 33646441770020 |
9 | 6683513071000 |
10 | 1912141770768 |
11 | 677a311a8889 |
12 | 26a7044b0900 |
13 | 10b411396798 |
14 | 687961d290c |
15 | 34b14bb9a13 |
hex | 1bd3487f010 |
1912141770768 has 70 divisors (see below), whose sum is σ = 5554621057454. Its totient is φ = 637380586368.
The previous prime is 1912141770743. The next prime is 1912141770769. The reversal of 1912141770768 is 8670771412191.
1912141770768 is a `hidden beast` number, since 1 + 91 + 2 + 1 + 417 + 70 + 76 + 8 = 666.
It can be written as a sum of positive squares in only one way, i.e., 965046887424 + 947094883344 = 982368^2 + 973188^2 .
It is a Harshad number since it is a multiple of its sum of digits (54).
It is not an unprimeable number, because it can be changed into a prime (1912141770769) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 81956005 + ... + 81979332.
Almost surely, 21912141770768 is an apocalyptic number.
1912141770768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
1912141770768 is an abundant number, since it is smaller than the sum of its proper divisors (3642479286686).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1912141770768 is an equidigital number, since it uses as much as digits as its factorization.
1912141770768 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 163935363 (or 163935342 counting only the distinct ones).
The product of its (nonzero) digits is 1185408, while the sum is 54.
The spelling of 1912141770768 in words is "one trillion, nine hundred twelve billion, one hundred forty-one million, seven hundred seventy thousand, seven hundred sixty-eight".
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