Base | Representation |
---|---|
bin | 11111001001001111100000… |
… | …00001100100000000000000 |
3 | 22222111022122022221212120111 |
4 | 33210213300001210000000 |
5 | 32434043422300214120 |
6 | 401354342230121104 |
7 | 20266020440602420 |
oct | 1744476001440000 |
9 | 288438568855514 |
10 | 68487280476160 |
11 | 1a905324407267 |
12 | 78213637b0194 |
13 | 2c2a427371a40 |
14 | 12cab32c00480 |
15 | 7db7a0b4d75a |
hex | 3e49f0064000 |
68487280476160 has 240 divisors, whose sum is σ = 202294738308096. Its totient is φ = 21675093000192.
The previous prime is 68487280476151. The next prime is 68487280476179. The reversal of 68487280476160 is 6167408278486.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2861169 + ... + 12048271.
Almost surely, 268487280476160 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68487280476160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101147369154048).
68487280476160 is an abundant number, since it is smaller than the sum of its proper divisors (133807457831936).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68487280476160 is an equidigital number, since it uses as much as digits as its factorization.
68487280476160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9187156 (or 9187130 counting only the distinct ones).
The product of its (nonzero) digits is 173408256, while the sum is 67.
The spelling of 68487280476160 in words is "sixty-eight trillion, four hundred eighty-seven billion, two hundred eighty million, four hundred seventy-six thousand, one hundred sixty".
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