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64016705 = 5233117957
BaseRepresentation
bin1111010000110…
…1000101000001
311110110101102002
43310031011001
5112342013310
610204033345
71405063424
oct364150501
9143411362
1064016705
1133154775
1219532855
131035530c
1487059bb
155947da5
hex3d0d141

64016705 has 16 divisors (see below), whose sum is σ = 82750464. Its totient is φ = 47403840.

The previous prime is 64016699. The next prime is 64016707. The reversal of 64016705 is 50761046.

It is not a de Polignac number, because 64016705 - 210 = 64015681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64016707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5414 + ... + 12543.

It is an arithmetic number, because the mean of its divisors is an integer number (5171904).

Almost surely, 264016705 is an apocalyptic number.

It is an amenable number.

64016705 is a deficient number, since it is larger than the sum of its proper divisors (18733759).

64016705 is a wasteful number, since it uses less digits than its factorization.

64016705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18016.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 64016705 is about 8001.0439943797. The cubic root of 64016705 is about 400.0347990558.

The spelling of 64016705 in words is "sixty-four million, sixteen thousand, seven hundred five".

Divisors: 1 5 23 31 115 155 713 3565 17957 89785 413011 556667 2065055 2783335 12803341 64016705