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67738331908900 = 22528230332
BaseRepresentation
bin11110110011011100011110…
…01101100000101100100100
322212211201110211002121210001
433121232033031200230210
532334311100432041100
6400022320551111044
720160635004036622
oct1731561715405444
9285751424077701
1067738331908900
111a6467354785a4
127720186372484
132ba490ac3c843
1412a27a4aa4512
157c7069691d6a
hex3d9b8f360b24

67738331908900 has 27 divisors (see below), whose sum is σ = 146992358840691. Its totient is φ = 27095299842240.

The previous prime is 67738331908883. The next prime is 67738331908921. The reversal of 67738331908900 is 980913383776.

The square root of 67738331908900 is 8230330.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 25047162221796 + 42691169687104 = 5004714^2 + 6533848^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 81891784 + ... + 82714816.

Almost surely, 267738331908900 is an apocalyptic number.

67738331908900 is the 8230330-th square number.

It is an amenable number.

67738331908900 is an abundant number, since it is smaller than the sum of its proper divisors (79254026931791).

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

67738331908900 is an frugal number, since it uses more digits than its factorization.

67738331908900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646080 (or 823040 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 64.

The spelling of 67738331908900 in words is "sixty-seven trillion, seven hundred thirty-eight billion, three hundred thirty-one million, nine hundred eight thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 823033 1646066 3292132 4115165 8230330 16460660 20575825 41151650 82303300 677383319089 1354766638178 2709533276356 3386916595445 6773833190890 13547666381780 16934582977225 33869165954450 67738331908900