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213010221210 = 23537243190649
BaseRepresentation
bin1100011001100001100…
…1100000100010011010
3202100211001022101211020
43012120121200202122
511442221104034320
6241504444143310
721250410002043
oct3063031404232
9670731271736
10213010221210
1182378797a36
1235348837b36
131711885c317
14a449d4b8ca
15581a744940
hex319866089a

213010221210 has 32 divisors (see below), whose sum is σ = 511240939200. Its totient is φ = 56800902528.

The previous prime is 213010221163. The next prime is 213010221227. The reversal of 213010221210 is 12122010312.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 213010221210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021966 + ... + 1212614.

It is an arithmetic number, because the mean of its divisors is an integer number (15976279350).

Almost surely, 2213010221210 is an apocalyptic number.

213010221210 is an abundant number, since it is smaller than the sum of its proper divisors (298230717990).

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

213010221210 is a wasteful number, since it uses less digits than its factorization.

213010221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227902.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 213010221210 its reverse (12122010312), we get a palindrome (225132231522).

The spelling of 213010221210 in words is "two hundred thirteen billion, ten million, two hundred twenty-one thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 37243 74486 111729 186215 190649 223458 372430 381298 558645 571947 953245 1117290 1143894 1906490 2859735 5719470 7100340707 14200681414 21301022121 35501703535 42602044242 71003407070 106505110605 213010221210