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68825121700 = 22521973493661
BaseRepresentation
bin100000000011001001…
…1000000001110100100
320120122112121102211111
41000012103000032210
52111423212343300
651341241114404
74654356611326
oct1000623001644
9216575542744
1068825121700
1127208a94675
1211409488a04
13664ac0a8aa
14348c985616
151bcc3d89ba
hex10064c03a4

68825121700 has 36 divisors (see below), whose sum is σ = 150108681492. Its totient is φ = 27390294400.

The previous prime is 68825121667. The next prime is 68825121737. The reversal of 68825121700 is 712152886.

It can be written as a sum of positive squares in 6 ways, for example, as 7656950016 + 61168171684 = 87504^2 + 247322^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1727131 + ... + 1766530.

It is an arithmetic number, because the mean of its divisors is an integer number (4169685597).

Almost surely, 268825121700 is an apocalyptic number.

It is an amenable number.

68825121700 is an abundant number, since it is smaller than the sum of its proper divisors (81283559792).

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

68825121700 is a wasteful number, since it uses less digits than its factorization.

68825121700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493872 (or 3493865 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 68825121700 in words is "sixty-eight billion, eight hundred twenty-five million, one hundred twenty-one thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 197 394 788 985 1970 3940 4925 9850 19700 3493661 6987322 13974644 17468305 34936610 69873220 87341525 174683050 349366100 688251217 1376502434 2753004868 3441256085 6882512170 13765024340 17206280425 34412560850 68825121700