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68020770006 = 2337179949127
BaseRepresentation
bin111111010110010110…
…101001010011010110
320111120111002010202000
4333112112221103112
52103301304120011
651125345100130
74625422001550
oct772626512326
9214514063660
1068020770006
1126935a51302
1211224027646
136550393047
143413c064d0
151b819a2356
hexfd65a94d6

68020770006 has 32 divisors (see below), whose sum is σ = 172751162880. Its totient is φ = 19434505608.

The previous prime is 68020770001. The next prime is 68020770007. The reversal of 68020770006 is 60007702086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68020770001) 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, 89974186 + ... + 89974941.

It is an arithmetic number, because the mean of its divisors is an integer number (5398473840).

Almost surely, 268020770006 is an apocalyptic number.

68020770006 is an abundant number, since it is smaller than the sum of its proper divisors (104730392874).

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

68020770006 is a wasteful number, since it uses less digits than its factorization.

68020770006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179949145 (or 179949139 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 68020770006 in words is "sixty-eight billion, twenty million, seven hundred seventy thousand, six".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 126 189 378 179949127 359898254 539847381 1079694762 1259643889 1619542143 2519287778 3239084286 3778931667 4858626429 7557863334 9717252858 11336795001 22673590002 34010385003 68020770006