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200643080 = 23511456007
BaseRepresentation
bin10111111010110…
…01001000001000
3111222112201120012
423331121020020
5402331034310
631524251052
74654303151
oct1375311010
9458481505
10200643080
11a3292130
1257240a88
1332750c21
141c90c928
1512934c05
hexbf59208

200643080 has 32 divisors (see below), whose sum is σ = 492488640. Its totient is φ = 72960960.

The previous prime is 200643077. The next prime is 200643101. The reversal of 200643080 is 80346002.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 227564 + ... + 228443.

It is an arithmetic number, because the mean of its divisors is an integer number (15390270).

Almost surely, 2200643080 is an apocalyptic number.

200643080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200643080 is an abundant number, since it is smaller than the sum of its proper divisors (291845560).

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

200643080 is a wasteful number, since it uses less digits than its factorization.

200643080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456029 (or 456025 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 200643080 is about 14164.8536879136. The cubic root of 200643080 is about 585.4296694863.

Adding to 200643080 its reverse (80346002), we get a palindrome (280989082).

The spelling of 200643080 in words is "two hundred million, six hundred forty-three thousand, eighty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 456007 912014 1824028 2280035 3648056 4560070 5016077 9120140 10032154 18240280 20064308 25080385 40128616 50160770 100321540 200643080