Base | Representation |
---|---|
bin | 11110111100100011011100… |
… | …01110011010100001001100 |
3 | 22220221122022212200101120011 |
4 | 33132101232032122201030 |
5 | 32404423041121011340 |
6 | 400422201333403004 |
7 | 20222354633253334 |
oct | 1736215616324114 |
9 | 286848285611504 |
10 | 68051311110220 |
11 | 1a757443033959 |
12 | 7770972499464 |
13 | 2bc8298a3a319 |
14 | 12b39b58ba0c4 |
15 | 7d02865450ea |
hex | 3de46e39a84c |
68051311110220 has 12 divisors (see below), whose sum is σ = 142907753331504. Its totient is φ = 27220524444080.
The previous prime is 68051311110197. The next prime is 68051311110221. The reversal of 68051311110220 is 2201111315086.
It is not an unprimeable number, because it can be changed into a prime (68051311110221) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701282777736 + ... + 1701282777775.
It is an arithmetic number, because the mean of its divisors is an integer number (11908979444292).
Almost surely, 268051311110220 is an apocalyptic number.
It is an amenable number.
68051311110220 is an abundant number, since it is smaller than the sum of its proper divisors (74856442221284).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68051311110220 is a wasteful number, since it uses less digits than its factorization.
68051311110220 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3402565555520 (or 3402565555518 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 31.
The spelling of 68051311110220 in words is "sixty-eight trillion, fifty-one billion, three hundred eleven million, one hundred ten thousand, two hundred twenty".
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