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200020380 = 22357895351
BaseRepresentation
bin10111110110000…
…01000110011100
3111221101002101020
423323001012130
5402201123010
631503044140
74646100540
oct1373010634
9457332336
10200020380
11a29a72aa
1256ba0650
1332593671
141c7c9a20
1512860470
hexbec119c

200020380 has 96 divisors (see below), whose sum is σ = 647377920. Its totient is φ = 45196800.

The previous prime is 200020367. The next prime is 200020399. The reversal of 200020380 is 83020002.

200020380 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 (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34705 + ... + 40055.

It is an arithmetic number, because the mean of its divisors is an integer number (6743520).

Almost surely, 2200020380 is an apocalyptic number.

200020380 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 200020380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323688960).

200020380 is an abundant number, since it is smaller than the sum of its proper divisors (447357540).

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

200020380 is a wasteful number, since it uses less digits than its factorization.

200020380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5459 (or 5457 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 200020380 is about 14142.8561471861. The cubic root of 200020380 is about 584.8234107951.

Adding to 200020380 its reverse (83020002), we get a palindrome (283040382).

The spelling of 200020380 in words is "two hundred million, twenty thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 89 105 140 178 210 267 356 420 445 534 623 890 1068 1246 1335 1780 1869 2492 2670 3115 3738 5340 5351 6230 7476 9345 10702 12460 16053 18690 21404 26755 32106 37380 37457 53510 64212 74914 80265 107020 112371 149828 160530 187285 224742 321060 374570 449484 476239 561855 749140 952478 1123710 1428717 1904956 2247420 2381195 2857434 3333673 4762390 5714868 6667346 7143585 9524780 10001019 13334692 14287170 16668365 20002038 28574340 33336730 40004076 50005095 66673460 100010190 200020380