Base | Representation |
---|---|
bin | 1001001010100101001000… |
… | …01100101001000001100001 |
3 | 2122100202220120120112120202 |
4 | 10211102210030221001201 |
5 | 10120203402240030032 |
6 | 110510543233514545 |
7 | 4150063164435500 |
oct | 445224414510141 |
9 | 78322816515522 |
10 | 20154741330017 |
11 | 647063a058648 |
12 | 231615a112a55 |
13 | b32778c34cc8 |
14 | 4d96cd5b8837 |
15 | 24e40ed23d62 |
hex | 1254a4329061 |
20154741330017 has 24 divisors (see below), whose sum is σ = 23709543436800. Its totient is φ = 17080808369856.
The previous prime is 20154741330011. The next prime is 20154741330029. The reversal of 20154741330017 is 71003314745102.
It is not a de Polignac number, because 20154741330017 - 232 = 20150446362721 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20154741330011) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172737584 + ... + 172854222.
It is an arithmetic number, because the mean of its divisors is an integer number (987897643200).
Almost surely, 220154741330017 is an apocalyptic number.
It is an amenable number.
20154741330017 is a deficient number, since it is larger than the sum of its proper divisors (3554802106783).
20154741330017 is a wasteful number, since it uses less digits than its factorization.
20154741330017 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 156365 (or 156358 counting only the distinct ones).
The product of its (nonzero) digits is 70560, while the sum is 38.
The spelling of 20154741330017 in words is "twenty trillion, one hundred fifty-four billion, seven hundred forty-one million, three hundred thirty thousand, seventeen".
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