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200782101 = 31319270961
BaseRepresentation
bin10111111011110…
…11000100010101
3111222210210021010
423331323010111
5402400011401
631531242433
74655422362
oct1375730425
9458723233
10200782101
11a3377623
12572a9419
133279c2a0
141c947469
1512960ed6
hexbf7b115

200782101 has 16 divisors (see below), whose sum is σ = 303477440. Its totient is φ = 117054720.

The previous prime is 200782081. The next prime is 200782151. The reversal of 200782101 is 101287002.

It is not a de Polignac number, because 200782101 - 211 = 200780053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200782151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134740 + ... + 136221.

It is an arithmetic number, because the mean of its divisors is an integer number (18967340).

Almost surely, 2200782101 is an apocalyptic number.

It is an amenable number.

200782101 is a deficient number, since it is larger than the sum of its proper divisors (102695339).

200782101 is a wasteful number, since it uses less digits than its factorization.

200782101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270996.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 200782101 is about 14169.7600897122. The cubic root of 200782101 is about 585.5648485453.

The spelling of 200782101 in words is "two hundred million, seven hundred eighty-two thousand, one hundred one".

Divisors: 1 3 13 19 39 57 247 741 270961 812883 3522493 5148259 10567479 15444777 66927367 200782101