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207271028 = 2251817757
BaseRepresentation
bin11000101101010…
…11010001110100
3112110000110101202
430112223101310
5411030133103
632322312032
75064526466
oct1426532164
9473013352
10207271028
11a6aa9878
12594b8618
1333c319a3
141d756136
15132e3988
hexc5ab474

207271028 has 6 divisors (see below), whose sum is σ = 362724306. Its totient is φ = 103635512.

The previous prime is 207271007. The next prime is 207271039. The reversal of 207271028 is 820172702.

207271028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 164916964 + 42354064 = 12842^2 + 6508^2 .

It is a super-2 number, since 2×2072710282 = 85922558096353568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25908875 + ... + 25908882.

It is an arithmetic number, because the mean of its divisors is an integer number (60454051).

Almost surely, 2207271028 is an apocalyptic number.

It is an amenable number.

207271028 is a deficient number, since it is larger than the sum of its proper divisors (155453278).

207271028 is a wasteful number, since it uses less digits than its factorization.

207271028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51817761 (or 51817759 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 207271028 is about 14396.9103629911. The cubic root of 207271028 is about 591.8062314771.

The spelling of 207271028 in words is "two hundred seven million, two hundred seventy-one thousand, twenty-eight".

Divisors: 1 2 4 51817757 103635514 207271028