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63687041 = 115789731
BaseRepresentation
bin1111001011110…
…0100110000001
311102211122012022
43302330212001
5112300441131
610153011225
71402221335
oct362744601
9142748168
1063687041
1132a4a020
12193b3b15
131026b252
14865b7c5
1558d037b
hex3cbc981

63687041 has 4 divisors (see below), whose sum is σ = 69476784. Its totient is φ = 57897300.

The previous prime is 63687037. The next prime is 63687059. The reversal of 63687041 is 14078636.

63687041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 63687041 - 22 = 63687037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63686992 and 63687010.

It is not an unprimeable number, because it can be changed into a prime (63687011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2894855 + ... + 2894876.

It is an arithmetic number, because the mean of its divisors is an integer number (17369196).

Almost surely, 263687041 is an apocalyptic number.

It is an amenable number.

63687041 is a deficient number, since it is larger than the sum of its proper divisors (5789743).

63687041 is a wasteful number, since it uses less digits than its factorization.

63687041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789742.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 63687041 is about 7980.4160919090. The cubic root of 63687041 is about 399.3469364335.

The spelling of 63687041 in words is "sixty-three million, six hundred eighty-seven thousand, forty-one".

Divisors: 1 11 5789731 63687041