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219330680 = 235191312203
BaseRepresentation
bin11010001001010…
…11100001111000
3120021201011010112
431010223201320
5422122040210
633433003452
75302165022
oct1504534170
9507634115
10219330680
11102896428
1261553588
1336594b8a
14211b5012
15143c6d05
hexd12b878

219330680 has 64 divisors (see below), whose sum is σ = 523670400. Its totient is φ = 82442880.

The previous prime is 219330679. The next prime is 219330697. The reversal of 219330680 is 86033912.

It is a super-3 number, since 3×2193306803 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98459 + ... + 100661.

It is an arithmetic number, because the mean of its divisors is an integer number (8182350).

Almost surely, 2219330680 is an apocalyptic number.

219330680 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 219330680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261835200).

219330680 is an abundant number, since it is smaller than the sum of its proper divisors (304339720).

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

219330680 is a wasteful number, since it uses less digits than its factorization.

219330680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364 (or 2360 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 219330680 is about 14809.8170143996. The cubic root of 219330680 is about 603.0682459952.

The spelling of 219330680 in words is "two hundred nineteen million, three hundred thirty thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 131 152 190 262 380 524 655 760 1048 1310 2203 2489 2620 4406 4978 5240 8812 9956 11015 12445 17624 19912 22030 24890 41857 44060 49780 83714 88120 99560 167428 209285 288593 334856 418570 577186 837140 1154372 1442965 1674280 2308744 2885930 5483267 5771860 10966534 11543720 21933068 27416335 43866136 54832670 109665340 219330680