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212020223202 = 23223512126143
BaseRepresentation
bin1100010101110101100…
…0111101110011100010
3202021021001110021212100
43011131120331303202
511433204134120302
6241222321111230
721214026106344
oct3053530756342
9667231407770
10212020223202
1181a0a985867
1235111188516
1316cbb714898
14a394685294
1557ad88bd1c
hex315d63dce2

212020223202 has 24 divisors (see below), whose sum is σ = 479350070784. Its totient is φ = 67600650744.

The previous prime is 212020223201. The next prime is 212020223221. The reversal of 212020223202 is 202322020212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (212020223201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 256062658 + ... + 256063485.

It is an arithmetic number, because the mean of its divisors is an integer number (19972919616).

Almost surely, 2212020223202 is an apocalyptic number.

212020223202 is an abundant number, since it is smaller than the sum of its proper divisors (267329847582).

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

212020223202 is a wasteful number, since it uses less digits than its factorization.

212020223202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512126174 (or 512126171 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 212020223202 its reverse (202322020212), we get a palindrome (414342243414).

The spelling of 212020223202 in words is "two hundred twelve billion, twenty million, two hundred twenty-three thousand, two hundred two".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 414 512126143 1024252286 1536378429 3072756858 4609135287 9218270574 11778901289 23557802578 35336703867 70673407734 106010111601 212020223202