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64484055 = 3251432979
BaseRepresentation
bin1111010111111…
…1001011010111
311111100010111100
43311333023113
5113001442210
610222041143
71412051106
oct365771327
9144303440
1064484055
1133443909
12197191b3
1310489c5c
1487c803d
1559db5c0
hex3d7f2d7

64484055 has 12 divisors (see below), whose sum is σ = 111772440. Its totient is φ = 34391472.

The previous prime is 64484053. The next prime is 64484059. The reversal of 64484055 is 55048446.

64484055 is a `hidden beast` number, since 644 + 8 + 4 + 0 + 5 + 5 = 666.

It is not a de Polignac number, because 64484055 - 21 = 64484053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64484053) 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 11 ways as a sum of consecutive naturals, for example, 716445 + ... + 716534.

It is an arithmetic number, because the mean of its divisors is an integer number (9314370).

Almost surely, 264484055 is an apocalyptic number.

64484055 is a deficient number, since it is larger than the sum of its proper divisors (47288385).

64484055 is a wasteful number, since it uses less digits than its factorization.

64484055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432990 (or 1432987 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 64484055 is about 8030.1964484065. The cubic root of 64484055 is about 401.0059161280.

The spelling of 64484055 in words is "sixty-four million, four hundred eighty-four thousand, fifty-five".

Divisors: 1 3 5 9 15 45 1432979 4298937 7164895 12896811 21494685 64484055