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213130233200 = 2452797668539
BaseRepresentation
bin1100011001111110001…
…1010100010101110000
3202101010102010122022202
43012133203110111300
511442442314430300
6241524412322332
721253365043163
oct3063743242560
9671112118282
10213130233200
118242a5077a5
1235380a733a8
131713768b831
14a45bc6bada
15582604dad5
hex319f8d4570

213130233200 has 60 divisors (see below), whose sum is σ = 512688618120. Its totient is φ = 85144999680.

The previous prime is 213130233143. The next prime is 213130233233. The reversal of 213130233200 is 2332031312.

213130233200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15470 + ... + 653069.

It is an arithmetic number, because the mean of its divisors is an integer number (8544810302).

Almost surely, 2213130233200 is an apocalyptic number.

213130233200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213130233200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256344309060).

213130233200 is an abundant number, since it is smaller than the sum of its proper divisors (299558384920).

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

213130233200 is a wasteful number, since it uses less digits than its factorization.

213130233200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669354 (or 669343 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 213130233200 its reverse (2332031312), we get a palindrome (215462264512).

The spelling of 213130233200 in words is "two hundred thirteen billion, one hundred thirty million, two hundred thirty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 797 1594 3188 3985 6376 7970 12752 15940 19925 31880 39850 63760 79700 159400 318800 668539 1337078 2674156 3342695 5348312 6685390 10696624 13370780 16713475 26741560 33426950 53483120 66853900 133707800 267415600 532825583 1065651166 2131302332 2664127915 4262604664 5328255830 8525209328 10656511660 13320639575 21313023320 26641279150 42626046640 53282558300 106565116600 213130233200