Base | Representation |
---|---|
bin | 10010101010101111… |
… | …01111000011110101 |
3 | 221212110120112021010 |
4 | 21111113233003311 |
5 | 131011142020041 |
6 | 4334254542433 |
7 | 503234315232 |
oct | 112527570365 |
9 | 27773515233 |
10 | 10022220021 |
11 | 4283311270 |
12 | 1b38507a19 |
13 | c3949a208 |
14 | 6b10a8789 |
15 | 3d9ceba16 |
hex | 2555ef0f5 |
10022220021 has 16 divisors (see below), whose sum is σ = 14719311360. Its totient is φ = 6015099120.
The previous prime is 10022220017. The next prime is 10022220053. The reversal of 10022220021 is 12002222001.
It is not a de Polignac number, because 10022220021 - 22 = 10022220017 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 10022219979 and 10022220006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10022220011) 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, 1470891 + ... + 1477688.
It is an arithmetic number, because the mean of its divisors is an integer number (919956960).
Almost surely, 210022220021 is an apocalyptic number.
10022220021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
10022220021 is a deficient number, since it is larger than the sum of its proper divisors (4697091339).
10022220021 is a wasteful number, since it uses less digits than its factorization.
10022220021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2948696.
The product of its (nonzero) digits is 32, while the sum is 12.
Adding to 10022220021 its reverse (12002222001), we get a palindrome (22024442022).
The spelling of 10022220021 in words is "ten billion, twenty-two million, two hundred twenty thousand, twenty-one".
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