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200443680 = 2533546399
BaseRepresentation
bin10111111001010…
…00011100100000
3111222011121001000
423330220130200
5402303144210
631520112000
74652512623
oct1374503440
9458147030
10200443680
11a3166338
1257165600
13326b1238
141c899dba
15128e5ac0
hexbf28720

200443680 has 96 divisors (see below), whose sum is σ = 701568000. Its totient is φ = 53450496.

The previous prime is 200443669. The next prime is 200443687. The reversal of 200443680 is 86344002.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (200443687) by changing a digit.

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, 18880 + ... + 27519.

It is an arithmetic number, because the mean of its divisors is an integer number (7308000).

Almost surely, 2200443680 is an apocalyptic number.

200443680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200443680 is an abundant number, since it is smaller than the sum of its proper divisors (501124320).

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

200443680 is a wasteful number, since it uses less digits than its factorization.

200443680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46423 (or 46409 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 200443680 is about 14157.8133904922. The cubic root of 200443680 is about 585.2356709891.

Adding to 200443680 its reverse (86344002), we get a palindrome (286787682).

The spelling of 200443680 in words is "two hundred million, four hundred forty-three thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 72 80 90 96 108 120 135 144 160 180 216 240 270 288 360 432 480 540 720 864 1080 1440 2160 4320 46399 92798 139197 185596 231995 278394 371192 417591 463990 556788 695985 742384 835182 927980 1113576 1252773 1391970 1484768 1670364 1855960 2087955 2227152 2505546 2783940 3340728 3711920 4175910 4454304 5011092 5567880 6263865 6681456 7423840 8351820 10022184 11135760 12527730 13362912 16703640 20044368 22271520 25055460 33407280 40088736 50110920 66814560 100221840 200443680