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20200212 = 2233359521
BaseRepresentation
bin100110100001…
…1101100010100
31102000021111000
41031003230110
520132401322
62000543300
7333461514
oct115035424
942007430
1020200212
111044779a
126921b30
1342535b6
14297b844
151b903ac
hex1343b14

20200212 has 48 divisors (see below), whose sum is σ = 52617600. Its totient is φ = 6701760.

The previous prime is 20200181. The next prime is 20200223. The reversal of 20200212 is 21200202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20200194 and 20200203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38512 + ... + 39032.

It is an arithmetic number, because the mean of its divisors is an integer number (1096200).

Almost surely, 220200212 is an apocalyptic number.

It is an amenable number.

20200212 is an abundant number, since it is smaller than the sum of its proper divisors (32417388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20200212 is a wasteful number, since it uses less digits than its factorization.

20200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 20200212 is about 4494.4645954774. The cubic root of 20200212 is about 272.3445209066.

Adding to 20200212 its reverse (21200202), we get a palindrome (41400414).

The spelling of 20200212 in words is "twenty million, two hundred thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 359 521 718 1042 1077 1436 1563 2084 2154 3126 3231 4308 4689 6252 6462 9378 9693 12924 14067 18756 19386 28134 38772 56268 187039 374078 561117 748156 1122234 1683351 2244468 3366702 5050053 6733404 10100106 20200212