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2021208 = 233753227
BaseRepresentation
bin111101101011101011000
310210200120120
413231131120
51004134313
6111153240
723115510
oct7553530
93720516
102021208
111160622
12815820
13559ca7
143a8840
1529dd23
hex1ed758

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".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 53 56 84 106 159 168 212 227 318 371 424 454 636 681 742 908 1113 1272 1362 1484 1589 1816 2226 2724 2968 3178 4452 4767 5448 6356 8904 9534 12031 12712 19068 24062 36093 38136 48124 72186 84217 96248 144372 168434 252651 288744 336868 505302 673736 1010604 2021208