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8389949928108 = 2237313221946977
BaseRepresentation
bin111101000010110111111…
…1111000011001010101100
31002201001221000222020000020
41322011233333003022230
52044430104140144413
625502142332202140
71524103531501140
oct172055777031254
932631830866006
108389949928108
1127451810108a1
12b36041309350
1348b227062ca8
1421010bba7220
15e83963aec23
hex7a16ffc32ac

8389949928108 has 48 divisors (see below), whose sum is σ = 23094915938304. Its totient is φ = 2319801822720.

The previous prime is 8389949928007. The next prime is 8389949928163. The reversal of 8389949928108 is 8018299499838.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1610970885 + ... + 1610976092.

It is an arithmetic number, because the mean of its divisors is an integer number (481144082048).

Almost surely, 28389949928108 is an apocalyptic number.

It is an amenable number.

8389949928108 is an abundant number, since it is smaller than the sum of its proper divisors (14704966010196).

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

8389949928108 is a wasteful number, since it uses less digits than its factorization.

8389949928108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221947022 (or 3221947020 counting only the distinct ones).

The product of its (nonzero) digits is 644972544, while the sum is 78.

The spelling of 8389949928108 in words is "eight trillion, three hundred eighty-nine billion, nine hundred forty-nine million, nine hundred twenty-eight thousand, one hundred eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 31 42 62 84 93 124 186 217 372 434 651 868 1302 2604 3221946977 6443893954 9665840931 12887787908 19331681862 22553628839 38663363724 45107257678 67660886517 90214515356 99880356287 135321773034 199760712574 270643546068 299641068861 399521425148 599282137722 699162494009 1198564275444 1398324988018 2097487482027 2796649976036 4194974964054 8389949928108