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201241913 = 1759114407
BaseRepresentation
bin10111111111010…
…11010100111001
3112000200011000012
423333223110321
5403004220123
631545151305
74662346055
oct1377532471
9460604005
10201241913
11a3661034
125748b535
1332900672
141ca26c65
1512a02378
hexbfeb539

201241913 has 4 divisors (see below), whose sum is σ = 201358080. Its totient is φ = 201125748.

The previous prime is 201241891. The next prime is 201241951. The reversal of 201241913 is 319142102.

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 201241913 - 224 = 184464697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201241613) 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 3 ways as a sum of consecutive naturals, for example, 55445 + ... + 58962.

It is an arithmetic number, because the mean of its divisors is an integer number (50339520).

Almost surely, 2201241913 is an apocalyptic number.

It is an amenable number.

201241913 is a deficient number, since it is larger than the sum of its proper divisors (116167).

201241913 is a wasteful number, since it uses less digits than its factorization.

201241913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116166.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 201241913 is about 14185.9759269498. The cubic root of 201241913 is about 586.0115093237.

The spelling of 201241913 in words is "two hundred one million, two hundred forty-one thousand, nine hundred thirteen".

Divisors: 1 1759 114407 201241913