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64434630411 = 334373937507
BaseRepresentation
bin111100000000100110…
…100110111100001011
320011022120010101001000
4330000212212330023
52023430231133121
645333441430043
74440515215224
oct740046467413
9204276111030
1064434630411
112536573a578
12105a303b323
1360cb426958
14319382424b
151a21c2c526
hexf009a6f0b

64434630411 has 32 divisors (see below), whose sum is σ = 97704907520. Its totient is φ = 41946170112.

The previous prime is 64434630397. The next prime is 64434630493. The reversal of 64434630411 is 11403643446.

64434630411 is a `hidden beast` number, since 6 + 4 + 4 + 3 + 4 + 630 + 4 + 11 = 666.

It is not a de Polignac number, because 64434630411 - 26 = 64434630347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64434631411) 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 31 ways as a sum of consecutive naturals, for example, 8579520 + ... + 8587026.

It is an arithmetic number, because the mean of its divisors is an integer number (3053278360).

Almost surely, 264434630411 is an apocalyptic number.

64434630411 is a deficient number, since it is larger than the sum of its proper divisors (33270277109).

64434630411 is a wasteful number, since it uses less digits than its factorization.

64434630411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14952 (or 14946 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 64434630411 in words is "sixty-four billion, four hundred thirty-four million, six hundred thirty thousand, four hundred eleven".

Divisors: 1 3 9 27 43 129 387 1161 7393 7507 22179 22521 66537 67563 199611 202689 317899 322801 953697 968403 2861091 2905209 8583273 8715627 55499251 166497753 499493259 1498479777 2386467793 7159403379 21478210137 64434630411