Base | Representation |
---|---|
bin | 111101101011101011000 |
3 | 10210200120120 |
4 | 13231131120 |
5 | 1004134313 |
6 | 111153240 |
7 | 23115510 |
oct | 7553530 |
9 | 3720516 |
10 | 2021208 |
11 | 1160622 |
12 | 815820 |
13 | 559ca7 |
14 | 3a8840 |
15 | 29dd23 |
hex | 1ed758 |
2021208 has 64 divisors (see below), whose sum is σ = 5909760. Its totient is φ = 564096.
The previous prime is 2021203. The next prime is 2021219. The reversal of 2021208 is 8021202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2021203) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8791 + ... + 9017.
It is an arithmetic number, because the mean of its divisors is an integer number (92340).
22021208 is an apocalyptic number.
2021208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2021208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2954880).
2021208 is an abundant number, since it is smaller than the sum of its proper divisors (3888552).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2021208 is a wasteful number, since it uses less digits than its factorization.
2021208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 296 (or 292 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 15.
The square root of 2021208 is about 1421.6919497556. The cubic root of 2021208 is about 126.4358801628.
The spelling of 2021208 in words is "two million, twenty-one thousand, two hundred eight".
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