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200788900 = 22521321092
BaseRepresentation
bin10111111011111…
…00101110100100
3111222211010120221
423331330232210
5402400221100
631531334124
74655451244
oct1375745644
9458733527
10200788900
11a3381744
12572b1344
13327a2400
141c949b24
151296301a
hexbf7cba4

200788900 has 81 divisors (see below), whose sum is σ = 476174601. Its totient is φ = 73457280.

The previous prime is 200788879. The next prime is 200788927. The reversal of 200788900 is 9887002.

It is a happy number.

The square root of 200788900 is 14170.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 161951076 + 38837824 = 12726^2 + 6232^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1842046 + ... + 1842154.

Almost surely, 2200788900 is an apocalyptic number.

200788900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

200788900 is the 14170-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200788900

200788900 is an abundant number, since it is smaller than the sum of its proper divisors (275385701).

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

200788900 is a wasteful number, since it uses less digits than its factorization.

200788900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The cubic root of 200788900 is about 585.5714580496.

The spelling of 200788900 in words is "two hundred million, seven hundred eighty-eight thousand, nine hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 109 130 169 218 260 325 338 436 545 650 676 845 1090 1300 1417 1690 2180 2725 2834 3380 4225 5450 5668 7085 8450 10900 11881 14170 16900 18421 23762 28340 35425 36842 47524 59405 70850 73684 92105 118810 141700 154453 184210 237620 297025 308906 368420 460525 594050 617812 772265 921050 1188100 1544530 1842100 2007889 3089060 3861325 4015778 7722650 8031556 10039445 15445300 20078890 40157780 50197225 100394450 200788900