Base | Representation |
---|---|
bin | 11101011001011000100… |
… | …110011110100111001011 |
3 | 21011010021201021012020221 |
4 | 131121120212132213023 |
5 | 231044202001022422 |
6 | 4144010354130511 |
7 | 265643325061150 |
oct | 35313046364713 |
9 | 7133251235227 |
10 | 2020121110987 |
11 | 709801780331 |
12 | 28761a580a37 |
13 | 11865c0647c5 |
14 | 6dabaca0227 |
15 | 378346bd3c7 |
hex | 1d65899e9cb |
2020121110987 has 8 divisors (see below), whose sum is σ = 2322873706496. Its totient is φ = 1720909481832.
The previous prime is 2020121110967. The next prime is 2020121111027. The reversal of 2020121110987 is 7890111210202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2020121110987 - 223 = 2020112722379 is a prime.
It is a super-2 number, since 2×20201211109872 (a number of 25 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (2020121110907) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885240363 + ... + 885242644.
It is an arithmetic number, because the mean of its divisors is an integer number (290359213312).
Almost surely, 22020121110987 is an apocalyptic number.
2020121110987 is a deficient number, since it is larger than the sum of its proper divisors (302752595509).
2020121110987 is a wasteful number, since it uses less digits than its factorization.
2020121110987 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1770483177.
The product of its (nonzero) digits is 4032, while the sum is 34.
The spelling of 2020121110987 in words is "two trillion, twenty billion, one hundred twenty-one million, one hundred ten thousand, nine hundred eighty-seven".
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