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213313102212 = 223722013115361
BaseRepresentation
bin1100011010101001110…
…0111010000110000100
3202101121011020100110010
43012222130322012010
511443331123232322
6241554504030220
721261045311040
oct3065234720604
9671534210403
10213313102212
1182513759a11
1235412162370
1317166528552
14a478271020
15583712220c
hex31aa73a184

213313102212 has 48 divisors (see below), whose sum is σ = 568865711232. Its totient is φ = 60943303680.

The previous prime is 213313102199. The next prime is 213313102271. The reversal of 213313102212 is 212201313312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1791412 + ... + 1906772.

It is an arithmetic number, because the mean of its divisors is an integer number (11851368984).

Almost surely, 2213313102212 is an apocalyptic number.

It is an amenable number.

213313102212 is an abundant number, since it is smaller than the sum of its proper divisors (355552609020).

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

213313102212 is a wasteful number, since it uses less digits than its factorization.

213313102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137388 (or 137386 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213313102212 its reverse (212201313312), we get a palindrome (425514415524).

The spelling of 213313102212 in words is "two hundred thirteen billion, three hundred thirteen million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 22013 44026 66039 88052 115361 132078 154091 230722 264156 308182 346083 461444 462273 616364 692166 807527 924546 1384332 1615054 1849092 2422581 3230108 4845162 9690324 2539441693 5078883386 7618325079 10157766772 15236650158 17776091851 30473300316 35552183702 53328275553 71104367404 106656551106 213313102212