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200738845 = 5257156217
BaseRepresentation
bin10111111011100…
…00100000011101
3111222201120221001
423331300200131
5402342120340
631530310301
74655152306
oct1375604035
9458646831
10200738845
11a334807a
1257288391
13327856a8
141c9357ad
151295329a
hexbf7081d

200738845 has 8 divisors (see below), whose sum is σ = 241825464. Its totient is φ = 159965184.

The previous prime is 200738809. The next prime is 200738849. The reversal of 200738845 is 548837002.

It can be written as a sum of positive squares in 4 ways, for example, as 40615129 + 160123716 = 6373^2 + 12654^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200738845 - 27 = 200738717 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 (200738849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76824 + ... + 79393.

It is an arithmetic number, because the mean of its divisors is an integer number (30228183).

Almost surely, 2200738845 is an apocalyptic number.

It is an amenable number.

200738845 is a deficient number, since it is larger than the sum of its proper divisors (41086619).

200738845 is a wasteful number, since it uses less digits than its factorization.

200738845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156479.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 200738845 is about 14168.2336584346. The cubic root of 200738845 is about 585.5227946435.

The spelling of 200738845 in words is "two hundred million, seven hundred thirty-eight thousand, eight hundred forty-five".

Divisors: 1 5 257 1285 156217 781085 40147769 200738845