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68736060549 = 321315116323869
BaseRepresentation
bin100000000000011111…
…1010000110010000101
320120102100000122220100
41000000333100302011
52111232412414144
651324340154313
74652225605662
oct1000077206205
9216370018810
1068736060549
1127172794712
12113a3698999
1366356270a0
143480c00a69
151bc4695269
hex1000fd0c85

68736060549 has 48 divisors (see below), whose sum is σ = 108295707520. Its totient is φ = 41759452800.

The previous prime is 68736060539. The next prime is 68736060563. The reversal of 68736060549 is 94506063786.

68736060549 is a `hidden beast` number, since 6 + 8 + 7 + 36 + 0 + 60 + 549 = 666.

It is not a de Polignac number, because 68736060549 - 212 = 68736056453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68736060495 and 68736060504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68736060529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2867787 + ... + 2891655.

Almost surely, 268736060549 is an apocalyptic number.

It is an amenable number.

68736060549 is a deficient number, since it is larger than the sum of its proper divisors (39559646971).

68736060549 is a wasteful number, since it uses less digits than its factorization.

68736060549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24202 (or 24199 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 68736060549 in words is "sixty-eight billion, seven hundred thirty-six million, sixty thousand, five hundred forty-nine".

Divisors: 1 3 9 13 39 117 151 163 453 489 1359 1467 1963 2119 5889 6357 17667 19071 23869 24613 71607 73839 214821 221517 310297 319969 930891 959907 2792673 2879721 3604219 3890647 10812657 11671941 32437971 35015823 46854847 50578411 140564541 151735233 421693623 455205699 587487697 1762463091 5287389273 7637340061 22912020183 68736060549