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201241427 = 17107317349
BaseRepresentation
bin10111111111010…
…11001101010011
3112000200010100012
423333223031103
5403004211202
631545145135
74662344462
oct1377531523
9460603305
10201241427
11a3660732
125748b1ab
133290038a
141ca269d9
1512a02152
hexbfeb353

201241427 has 16 divisors (see below), whose sum is σ = 216367200. Its totient is φ = 186505728.

The previous prime is 201241423. The next prime is 201241441. The reversal of 201241427 is 724142102.

It is a cyclic number.

It is not a de Polignac number, because 201241427 - 22 = 201241423 is a prime.

It is a super-2 number, since 2×2012414272 = 80996223881992658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201241423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 576449 + ... + 576797.

It is an arithmetic number, because the mean of its divisors is an integer number (13522950).

Almost surely, 2201241427 is an apocalyptic number.

201241427 is a deficient number, since it is larger than the sum of its proper divisors (15125773).

201241427 is a wasteful number, since it uses less digits than its factorization.

201241427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 201241427 is about 14185.9587973461. The cubic root of 201241427 is about 586.0110375833.

Adding to 201241427 its reverse (724142102), we get a palindrome (925383529).

The spelling of 201241427 in words is "two hundred one million, two hundred forty-one thousand, four hundred twenty-seven".

Divisors: 1 17 107 317 349 1819 5389 5933 33919 37343 110633 576623 634831 1880761 11837731 201241427