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68884201 = 312222071
BaseRepresentation
bin1000001101100…
…01011011101001
311210121200100201
410012301123221
5120113243301
610500232201
71464335401
oct406613351
9153550321
1068884201
11359797a1
121b09b661
131136a9a9
149211801
1560aa201
hex41b16e9

68884201 has 4 divisors (see below), whose sum is σ = 71106304. Its totient is φ = 66662100.

The previous prime is 68884183. The next prime is 68884213. The reversal of 68884201 is 10248886.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10248886 = 25124443.

It is a cyclic number.

It is not a de Polignac number, because 68884201 - 25 = 68884169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68884261) 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, 1111005 + ... + 1111066.

It is an arithmetic number, because the mean of its divisors is an integer number (17776576).

Almost surely, 268884201 is an apocalyptic number.

It is an amenable number.

68884201 is a deficient number, since it is larger than the sum of its proper divisors (2222103).

68884201 is a wasteful number, since it uses less digits than its factorization.

68884201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222102.

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 68884201 is about 8299.6506552987. The cubic root of 68884201 is about 409.9270165550.

The spelling of 68884201 in words is "sixty-eight million, eight hundred eighty-four thousand, two hundred one".

Divisors: 1 31 2222071 68884201