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201027005 = 550978989
BaseRepresentation
bin10111111101101…
…10110110111101
3112000021020012122
423332312312331
5402430331010
631540412325
74660462364
oct1376666675
9460236178
10201027005
11a3524623
12573a70a5
13328568ba
141c9ac7db
15129ad855
hexbfb6dbd

201027005 has 8 divisors (see below), whose sum is σ = 241709400. Its totient is φ = 160503616.

The previous prime is 201026993. The next prime is 201027053. The reversal of 201027005 is 500720102.

It can be written as a sum of positive squares in 4 ways, for example, as 78659161 + 122367844 = 8869^2 + 11062^2 .

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 201027005 - 26 = 201026941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36950 + ... + 42039.

It is an arithmetic number, because the mean of its divisors is an integer number (30213675).

Almost surely, 2201027005 is an apocalyptic number.

It is an amenable number.

201027005 is a deficient number, since it is larger than the sum of its proper divisors (40682395).

201027005 is an equidigital number, since it uses as much as digits as its factorization.

201027005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79503.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 201027005 is about 14178.3992396885. The cubic root of 201027005 is about 585.8028327505.

Adding to 201027005 its reverse (500720102), we get a palindrome (701747107).

The spelling of 201027005 in words is "two hundred one million, twenty-seven thousand, five".

Divisors: 1 5 509 2545 78989 394945 40205401 201027005