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200305220 = 2251719101307
BaseRepresentation
bin10111111000001…
…10101001000100
3111221220120002212
423330012221010
5402234231340
631513122552
74651365143
oct1374065104
9457816085
10200305220
11a3081305
12570b9458
13326631cb
141c86175a
15128b9a65
hexbf06a44

200305220 has 96 divisors (see below), whose sum is σ = 475009920. Its totient is φ = 70502400.

The previous prime is 200305219. The next prime is 200305253. The reversal of 200305220 is 22503002.

It is a junction number, because it is equal to n+sod(n) for n = 200305195 and 200305204.

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 31 ways as a sum of consecutive naturals, for example, 652307 + ... + 652613.

It is an arithmetic number, because the mean of its divisors is an integer number (4948020).

Almost surely, 2200305220 is an apocalyptic number.

200305220 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 200305220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237504960).

200305220 is an abundant number, since it is smaller than the sum of its proper divisors (274704700).

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

200305220 is a wasteful number, since it uses less digits than its factorization.

200305220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 200305220 is about 14152.9226663612. The cubic root of 200305220 is about 585.1008860025.

Adding to 200305220 its reverse (22503002), we get a palindrome (222808222).

The spelling of 200305220 in words is "two hundred million, three hundred five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 19 20 34 38 68 76 85 95 101 170 190 202 307 323 340 380 404 505 614 646 1010 1228 1292 1535 1615 1717 1919 2020 3070 3230 3434 3838 5219 5833 6140 6460 6868 7676 8585 9595 10438 11666 17170 19190 20876 23332 26095 29165 31007 32623 34340 38380 52190 58330 62014 65246 99161 104380 116660 124028 130492 155035 163115 198322 310070 326230 396644 495805 527119 589133 620140 652460 991610 1054238 1178266 1983220 2108476 2356532 2635595 2945665 5271190 5891330 10015261 10542380 11782660 20030522 40061044 50076305 100152610 200305220