Base | Representation |
---|---|
bin | 1001010101000111110… |
… | …0110010110000010010 |
3 | 120022201210102122212000 |
4 | 2111101330302300102 |
5 | 10111232400242403 |
6 | 201345142414430 |
7 | 14403050210466 |
oct | 2252174626022 |
9 | 508653378760 |
10 | 160288680978 |
11 | 61a83866488 |
12 | 27094431416 |
13 | 1216600367a |
14 | 7a87dbc4a6 |
15 | 4281eb27a3 |
hex | 2551f32c12 |
160288680978 has 32 divisors (see below), whose sum is σ = 371683900800. Its totient is φ = 51106535568.
The previous prime is 160288680977. The next prime is 160288681057. The reversal of 160288680978 is 879086882061.
It is a super-2 number, since 2×1602886809782 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (160288680977) by changing a digit.
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 15 ways as a sum of consecutive naturals, for example, 64527213 + ... + 64529696.
It is an arithmetic number, because the mean of its divisors is an integer number (11615121900).
Almost surely, 2160288680978 is an apocalyptic number.
160288680978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
160288680978 is an abundant number, since it is smaller than the sum of its proper divisors (211395219822).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
160288680978 is a wasteful number, since it uses less digits than its factorization.
160288680978 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 129056943 (or 129056937 counting only the distinct ones).
The product of its (nonzero) digits is 18579456, while the sum is 63.
The spelling of 160288680978 in words is "one hundred sixty billion, two hundred eighty-eight million, six hundred eighty thousand, nine hundred seventy-eight".
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