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213031102230 = 23256735328541
BaseRepresentation
bin1100011001100110100…
…1001010011100010110
3202100212111121021012100
43012121221022130112
511442241430232410
6241510511502530
721251052330462
oct3063151123426
9670774537170
10213031102230
118238955a181
1235353827a46
131711cc9075b
14a44ca254a2
15581c4bb8c0
hex3199a4a716

213031102230 has 48 divisors (see below), whose sum is σ = 562147760304. Its totient is φ = 55960407360.

The previous prime is 213031102217. The next prime is 213031102279. The reversal of 213031102230 is 32201130312.

213031102230 is a `hidden beast` number, since 2 + 130 + 311 + 0 + 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, 17658241 + ... + 17670300.

It is an arithmetic number, because the mean of its divisors is an integer number (11711411673).

Almost surely, 2213031102230 is an apocalyptic number.

213031102230 is an abundant number, since it is smaller than the sum of its proper divisors (349116658074).

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

213031102230 is a wasteful number, since it uses less digits than its factorization.

213031102230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35328621 (or 35328618 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 213031102230 its reverse (32201130312), we get a palindrome (245232232542).

The spelling of 213031102230 in words is "two hundred thirteen billion, thirty-one million, one hundred two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 67 90 134 201 335 402 603 670 1005 1206 2010 3015 6030 35328541 70657082 105985623 176642705 211971246 317956869 353285410 529928115 635913738 1059856230 1589784345 2367012247 3179568690 4734024494 7101036741 11835061235 14202073482 21303110223 23670122470 35505183705 42606220446 71010367410 106515551115 213031102230