Base | Representation |
---|---|
bin | 10010110101001101… |
… | …100101111110001000 |
3 | 1221012011200221121002 |
4 | 102311031211332020 |
5 | 312402321434210 |
6 | 13142231034132 |
7 | 1314034042112 |
oct | 226515457610 |
9 | 57164627532 |
10 | 20220108680 |
11 | 86367a6a22 |
12 | 3b0380b948 |
13 | 1ba3182965 |
14 | d9b6203b2 |
15 | 7d52484a5 |
hex | 4b5365f88 |
20220108680 has 32 divisors (see below), whose sum is σ = 47473300800. Its totient is φ = 7736389056.
The previous prime is 20220108677. The next prime is 20220108721. The reversal of 20220108680 is 8680102202.
It is a super-2 number, since 2×202201086802 (a number of 21 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10988270 + ... + 10990109.
It is an arithmetic number, because the mean of its divisors is an integer number (1483540650).
Almost surely, 220220108680 is an apocalyptic number.
20220108680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20220108680 is an abundant number, since it is smaller than the sum of its proper divisors (27253192120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20220108680 is a wasteful number, since it uses less digits than its factorization.
20220108680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21978413 (or 21978409 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 29.
The spelling of 20220108680 in words is "twenty billion, two hundred twenty million, one hundred eight thousand, six hundred eighty".
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