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6681754824072 = 2331741939085561
BaseRepresentation
bin110000100111011011110…
…0111110110110110001000
3212122202202222111222110120
41201032313213312312020
51333433213213332242
622113320014543240
71256512053622026
oct141166747666610
925582688458416
106681754824072
112146797450359
128bab76207b20
13396118855743
14191581cc5716
15b8c1b3a71ec
hex613b79f6d88

6681754824072 has 64 divisors (see below), whose sum is σ = 17729210923200. Its totient is φ = 2091233802240.

The previous prime is 6681754824037. The next prime is 6681754824083. The reversal of 6681754824072 is 2704284571866.

It is a super-2 number, since 2×66817548240722 (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6681754823997 and 6681754824015.

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, 19371829 + ... + 19713732.

It is an arithmetic number, because the mean of its divisors is an integer number (277018920675).

Almost surely, 26681754824072 is an apocalyptic number.

It is an amenable number.

6681754824072 is an abundant number, since it is smaller than the sum of its proper divisors (11047456099128).

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

6681754824072 is a wasteful number, since it uses less digits than its factorization.

6681754824072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39086006 (or 39086002 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 60.

The spelling of 6681754824072 in words is "six trillion, six hundred eighty-one billion, seven hundred fifty-four million, eight hundred twenty-four thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 419 838 1257 1676 2514 3352 5028 7123 10056 14246 21369 28492 42738 56984 85476 170952 39085561 78171122 117256683 156342244 234513366 312684488 469026732 664454537 938053464 1328909074 1993363611 2657818148 3986727222 5315636296 7973454444 15946908888 16376850059 32753700118 49130550177 65507400236 98261100354 131014800472 196522200708 278406451003 393044401416 556812902006 835219353009 1113625804012 1670438706018 2227251608024 3340877412036 6681754824072