Base | Representation |
---|---|
bin | 10010101110000100… |
… | …001101110101100100 |
3 | 1220212211002110112222 |
4 | 102232010031311210 |
5 | 312131123210040 |
6 | 13122305131512 |
7 | 1311046652252 |
oct | 225604156544 |
9 | 56784073488 |
10 | 20100210020 |
11 | 8585054320 |
12 | 3a8b629b98 |
13 | 1b84392bc7 |
14 | d8972d5d2 |
15 | 7c9962bb5 |
hex | 4ae10dd64 |
20100210020 has 48 divisors (see below), whose sum is σ = 46522522368. Its totient is φ = 7233807360.
The previous prime is 20100209977. The next prime is 20100210023. The reversal of 20100210020 is 2001200102.
It is not an unprimeable number, because it can be changed into a prime (20100210023) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449612 + ... + 492291.
It is an arithmetic number, because the mean of its divisors is an integer number (969219216).
Almost surely, 220100210020 is an apocalyptic number.
20100210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20100210020 is an abundant number, since it is smaller than the sum of its proper divisors (26422312348).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20100210020 is a wasteful number, since it uses less digits than its factorization.
20100210020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 942020 (or 942018 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 8.
Adding to 20100210020 its reverse (2001200102), we get a palindrome (22101410122).
The spelling of 20100210020 in words is "twenty billion, one hundred million, two hundred ten thousand, twenty".
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