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64984082608 = 2423491935899
BaseRepresentation
bin111100100001010110…
…100110100010110000
320012201212000102202101
4330201112212202300
52031041411120413
645504150230144
74460236405534
oct744126464260
9205655012671
1064984082608
11256179030a5
1210717055354
1361882049b3
1432067adbc4
151a550b2edd
hexf215a68b0

64984082608 has 40 divisors (see below), whose sum is σ = 131411232000. Its totient is φ = 31072160064.

The previous prime is 64984082567. The next prime is 64984082641. The reversal of 64984082608 is 80628048946.

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, 1792243 + ... + 1828141.

It is an arithmetic number, because the mean of its divisors is an integer number (3285280800).

Almost surely, 264984082608 is an apocalyptic number.

It is an amenable number.

64984082608 is an abundant number, since it is smaller than the sum of its proper divisors (66427149392).

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

64984082608 is a wasteful number, since it uses less digits than its factorization.

64984082608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40849 (or 40843 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 55.

The spelling of 64984082608 in words is "sixty-four billion, nine hundred eighty-four million, eighty-two thousand, six hundred eight".

Divisors: 1 2 4 8 16 23 46 92 184 368 4919 9838 19676 35899 39352 71798 78704 113137 143596 226274 287192 452548 574384 825677 905096 1651354 1810192 3302708 6605416 13210832 176587181 353174362 706348724 1412697448 2825394896 4061505163 8123010326 16246020652 32492041304 64984082608