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68188359700 = 2252681883597
BaseRepresentation
bin111111100000010101…
…111100110000010100
320112000011102120120201
4333200111330300110
52104122210002300
651154133110244
74632525331336
oct774025746024
9215004376521
1068188359700
1126a1160798a
1211270188384
136579010246
14342c18d456
151b9155866a
hexfe057cc14

68188359700 has 18 divisors (see below), whose sum is σ = 147968740766. Its totient is φ = 27275343840.

The previous prime is 68188359667. The next prime is 68188359713. The reversal of 68188359700 is 795388186.

68188359700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 81974916 + 68106384784 = 9054^2 + 260972^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 340941699 + ... + 340941898.

Almost surely, 268188359700 is an apocalyptic number.

It is an amenable number.

68188359700 is an abundant number, since it is smaller than the sum of its proper divisors (79780381066).

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

68188359700 is a wasteful number, since it uses less digits than its factorization.

68188359700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681883611 (or 681883604 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 68188359700 in words is "sixty-eight billion, one hundred eighty-eight million, three hundred fifty-nine thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 681883597 1363767194 2727534388 3409417985 6818835970 13637671940 17047089925 34094179850 68188359700