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64053256512 = 263747658673
BaseRepresentation
bin111011101001110111…
…110010000101000000
320010022222111120101210
4323221313302011000
52022140113202022
645231535330120
74425204461040
oct735167620500
9203288446353
1064053256512
112518a436733
12104b7380940
13606a40731b
143158d0b720
1519ed4e7a0c
hexee9df2140

64053256512 has 56 divisors (see below), whose sum is σ = 193684851136. Its totient is φ = 18300930048.

The previous prime is 64053256499. The next prime is 64053256549. The reversal of 64053256512 is 21565235046.

64053256512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×640532565122 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23827993 + ... + 23830680.

It is an arithmetic number, because the mean of its divisors is an integer number (3458658056).

Almost surely, 264053256512 is an apocalyptic number.

It is an amenable number.

64053256512 is an abundant number, since it is smaller than the sum of its proper divisors (129631594624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64053256512 is a wasteful number, since it uses less digits than its factorization.

64053256512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47658695 (or 47658685 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 64053256512 in words is "sixty-four billion, fifty-three million, two hundred fifty-six thousand, five hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 168 192 224 336 448 672 1344 47658673 95317346 142976019 190634692 285952038 333610711 381269384 571904076 667221422 762538768 1000832133 1143808152 1334442844 1525077536 2001664266 2287616304 2668885688 3050155072 4003328532 4575232608 5337771376 8006657064 9150465216 10675542752 16013314128 21351085504 32026628256 64053256512