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200525161 = 246781283
BaseRepresentation
bin10111111001111…
…00010101101001
3111222022201210211
423330330111221
5402313301121
631521541121
74653302314
oct1374742551
9458281724
10200525161
11a3211581
12571a47a1
133270c355
141c8bb97b
151290ece1
hexbf3c569

200525161 has 4 divisors (see below), whose sum is σ = 200608912. Its totient is φ = 200441412.

The previous prime is 200525123. The next prime is 200525179. The reversal of 200525161 is 161525002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200525161 - 225 = 166970729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200525191) 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 3 ways as a sum of consecutive naturals, for example, 38175 + ... + 43108.

It is an arithmetic number, because the mean of its divisors is an integer number (50152228).

Almost surely, 2200525161 is an apocalyptic number.

It is an amenable number.

200525161 is a deficient number, since it is larger than the sum of its proper divisors (83751).

200525161 is an equidigital number, since it uses as much as digits as its factorization.

200525161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83750.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 200525161 is about 14160.6906964314. The cubic root of 200525161 is about 585.3149603066.

The spelling of 200525161 in words is "two hundred million, five hundred twenty-five thousand, one hundred sixty-one".

Divisors: 1 2467 81283 200525161