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213001222230 = 23253763964331
BaseRepresentation
bin1100011001011111011…
…1001011100001010110
3202100210102101012112200
43012113313023201112
511442211303102410
6241503523225330
721250240341666
oct3062767134126
9670712335480
10213001222230
1182373700965
1235345818246
1317116a2b294
14a448a881a6
155819a683c0
hex3197dcb856

213001222230 has 48 divisors (see below), whose sum is σ = 568770840144. Its totient is φ = 55265181120.

The previous prime is 213001222219. The next prime is 213001222249. The reversal of 213001222230 is 32222100312.

213001222230 is a `hidden beast` number, since 21 + 300 + 122 + 223 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31978836 + ... + 31985495.

It is an arithmetic number, because the mean of its divisors is an integer number (11849392503).

Almost surely, 2213001222230 is an apocalyptic number.

213001222230 is an abundant number, since it is smaller than the sum of its proper divisors (355769617914).

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

213001222230 is a wasteful number, since it uses less digits than its factorization.

213001222230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63964381 (or 63964378 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 213001222230 its reverse (32222100312), we get a palindrome (245223322542).

The spelling of 213001222230 in words is "two hundred thirteen billion, one million, two hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 37 45 74 90 111 185 222 333 370 555 666 1110 1665 3330 63964331 127928662 191892993 319821655 383785986 575678979 639643310 959464965 1151357958 1918929930 2366680247 2878394895 4733360494 5756789790 7100040741 11833401235 14200081482 21300122223 23666802470 35500203705 42600244446 71000407410 106500611115 213001222230