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66226141 = 257925679
BaseRepresentation
bin1111110010100…
…0011111011101
311121121122012001
43330220133131
5113423214031
610323242301
71432625062
oct374503735
9147548161
1066226141
1134423753
121a219391
1310949b87
148b1cc69
155c32861
hex3f287dd

66226141 has 4 divisors (see below), whose sum is σ = 66254400. Its totient is φ = 66197884.

The previous prime is 66226129. The next prime is 66226151. The reversal of 66226141 is 14162266.

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 66226141 - 25 = 66226109 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 (66226151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10261 + ... + 15418.

It is an arithmetic number, because the mean of its divisors is an integer number (16563600).

Almost surely, 266226141 is an apocalyptic number.

It is an amenable number.

66226141 is a deficient number, since it is larger than the sum of its proper divisors (28259).

66226141 is a wasteful number, since it uses less digits than its factorization.

66226141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28258.

The product of its digits is 3456, while the sum is 28.

The square root of 66226141 is about 8137.9445193489. The cubic root of 66226141 is about 404.5850365390.

The spelling of 66226141 in words is "sixty-six million, two hundred twenty-six thousand, one hundred forty-one".

Divisors: 1 2579 25679 66226141