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64553227427 = 135419178619
BaseRepresentation
bin111100000111101011…
…000001010010100011
320011121211021201120002
4330013223001102203
52024201111234202
645353315410215
74443455244143
oct740753012243
9204554251502
1064553227427
1125416683237
12106168b396b
136119b7c0c0
1431a5496923
151a2c357302
hexf07ac14a3

64553227427 has 8 divisors (see below), whose sum is σ = 69647368560. Its totient is φ = 59477444640.

The previous prime is 64553227399. The next prime is 64553227429. The reversal of 64553227427 is 72472235546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64553227427 - 28 = 64553227171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64553227429) 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 7 ways as a sum of consecutive naturals, for example, 4582277 + ... + 4596342.

It is an arithmetic number, because the mean of its divisors is an integer number (8705921070).

Almost surely, 264553227427 is an apocalyptic number.

64553227427 is a deficient number, since it is larger than the sum of its proper divisors (5094141133).

64553227427 is a wasteful number, since it uses less digits than its factorization.

64553227427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179173.

The product of its digits is 2822400, while the sum is 47.

The spelling of 64553227427 in words is "sixty-four billion, five hundred fifty-three million, two hundred twenty-seven thousand, four hundred twenty-seven".

Divisors: 1 13 541 7033 9178619 119322047 4965632879 64553227427