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201263071 = 474282193
BaseRepresentation
bin10111111111100…
…00011111011111
3112000201020000211
423333300133133
5403010404241
631545433251
74662464542
oct1377603737
9460636024
10201263071
11a3675a19
125749b827
133290a199
141ca30859
1512a08781
hexbff07df

201263071 has 4 divisors (see below), whose sum is σ = 205545312. Its totient is φ = 196980832.

The previous prime is 201263063. The next prime is 201263077. The reversal of 201263071 is 170362102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170362102 = 285181051.

It is a cyclic number.

It is not a de Polignac number, because 201263071 - 23 = 201263063 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 (201263077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2141050 + ... + 2141143.

It is an arithmetic number, because the mean of its divisors is an integer number (51386328).

Almost surely, 2201263071 is an apocalyptic number.

201263071 is a deficient number, since it is larger than the sum of its proper divisors (4282241).

201263071 is an equidigital number, since it uses as much as digits as its factorization.

201263071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282240.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 201263071 is about 14186.7216438471. The cubic root of 201263071 is about 586.0320457961.

The spelling of 201263071 in words is "two hundred one million, two hundred sixty-three thousand, seventy-one".

Divisors: 1 47 4282193 201263071