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68060243520 = 26345191131223
BaseRepresentation
bin111111011000101101…
…001110011001000000
320111200020100121020000
4333120231032121000
52103341410243040
651133315120000
74626411344643
oct773055163100
9214606317200
1068060243520
1126956262345
12112352a3000
136558604059
14341915da5a
151b8519d130
hexfd8b4e640

68060243520 has 560 divisors, whose sum is σ = 257309965440. Its totient is φ = 17028071424.

The previous prime is 68060243477. The next prime is 68060243527. The reversal of 68060243520 is 2534206086.

68060243520 is a `hidden beast` number, since 6 + 8 + 0 + 602 + 43 + 5 + 2 + 0 = 666.

68060243520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68060243527) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 55649629 + ... + 55650851.

Almost surely, 268060243520 is an apocalyptic number.

68060243520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68060243520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128654982720).

68060243520 is an abundant number, since it is smaller than the sum of its proper divisors (189249721920).

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

68060243520 is a wasteful number, since it uses less digits than its factorization.

68060243520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384 (or 1365 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 68060243520 in words is "sixty-eight billion, sixty million, two hundred forty-three thousand, five hundred twenty".