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64346539848 = 23319703920047
BaseRepresentation
bin111011111011010110…
…100100011101001000
320011002102100220111120
4323323112210131020
52023240203233343
645321013355240
74435365364353
oct737326443510
9204072326446
1064346539848
112531aa42858
1210579638b20
1360b60c2b66
143185c5329a
151a1912b683
hexefb5a4748

64346539848 has 64 divisors (see below), whose sum is σ = 169365504000. Its totient is φ = 20316059712.

The previous prime is 64346539847. The next prime is 64346539861. The reversal of 64346539848 is 84893564346.

It is a super-3 number, since 3×643465398483 (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64346539791 and 64346539800.

It is not an unprimeable number, because it can be changed into a prime (64346539847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3199761 + ... + 3219807.

It is an arithmetic number, because the mean of its divisors is an integer number (2646336000).

Almost surely, 264346539848 is an apocalyptic number.

It is an amenable number.

64346539848 is an abundant number, since it is smaller than the sum of its proper divisors (105018964152).

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

64346539848 is a wasteful number, since it uses less digits than its factorization.

64346539848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27114 (or 27110 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 60.

The spelling of 64346539848 in words is "sixty-four billion, three hundred forty-six million, five hundred thirty-nine thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 7039 14078 20047 21117 28156 40094 42234 56312 60141 80188 84468 120282 133741 160376 168936 240564 267482 380893 401223 481128 534964 761786 802446 1069928 1142679 1523572 1604892 2285358 3047144 3209784 4570716 9141432 141110833 282221666 423332499 564443332 846664998 1128886664 1693329996 2681105827 3386659992 5362211654 8043317481 10724423308 16086634962 21448846616 32173269924 64346539848