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64159605384 = 23371941490247
BaseRepresentation
bin111011110000001101…
…011110001010001000
320010121101121122121220
4323300031132022020
52022344324333014
645250255002040
74430635435050
oct736015361210
9203541548556
1064159605384
1125234474166
1210526b09320
136086461854
1431690b2560
151a07a036a9
hexef035e288

64159605384 has 128 divisors (see below), whose sum is σ = 197667993600. Its totient is φ = 16942901760.

The previous prime is 64159605379. The next prime is 64159605409. The reversal of 64159605384 is 48350695146.

It is an unprimeable number.

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, 114252 + ... + 375995.

It is an arithmetic number, because the mean of its divisors is an integer number (1544281200).

Almost surely, 264159605384 is an apocalyptic number.

It is an amenable number.

64159605384 is an abundant number, since it is smaller than the sum of its proper divisors (133508388216).

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

64159605384 is a wasteful number, since it uses less digits than its factorization.

64159605384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490323 (or 490319 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 64159605384 in words is "sixty-four billion, one hundred fifty-nine million, six hundred five thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 7 8 12 14 19 21 24 28 38 41 42 56 57 76 82 84 114 123 133 152 164 168 228 246 266 287 328 399 456 492 532 574 779 798 861 984 1064 1148 1558 1596 1722 2296 2337 3116 3192 3444 4674 5453 6232 6888 9348 10906 16359 18696 21812 32718 43624 65436 130872 490247 980494 1470741 1960988 2941482 3431729 3921976 5882964 6863458 9314693 10295187 11765928 13726916 18629386 20100127 20590374 27453832 27944079 37258772 40200254 41180748 55888158 60300381 65202851 74517544 80400508 82361496 111776316 120600762 130405702 140700889 160801016 195608553 223552632 241201524 260811404 281401778 381902413 391217106 422102667 482403048 521622808 562803556 763804826 782434212 844205334 1125607112 1145707239 1527609652 1564868424 1688410668 2291414478 2673316891 3055219304 3376821336 4582828956 5346633782 8019950673 9165657912 10693267564 16039901346 21386535128 32079802692 64159605384