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68935548733 = 232997197771
BaseRepresentation
bin100000000110011100…
…0001111111100111101
320120221020101201020121
41000030320033330331
52112140000024413
651400224014541
74660200332122
oct1001470177475
9216836351217
1068935548733
1127265358087
121143a461451
136667a6242c
14349d4cc749
151bd6e4cb8d
hex100ce0ff3d

68935548733 has 4 divisors (see below), whose sum is σ = 71932746528. Its totient is φ = 65938350940.

The previous prime is 68935548719. The next prime is 68935548827. The reversal of 68935548733 is 33784553986.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68935548733 - 25 = 68935548701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68935542733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1498598863 + ... + 1498598908.

It is an arithmetic number, because the mean of its divisors is an integer number (17983186632).

Almost surely, 268935548733 is an apocalyptic number.

It is an amenable number.

68935548733 is a deficient number, since it is larger than the sum of its proper divisors (2997197795).

68935548733 is a wasteful number, since it uses less digits than its factorization.

68935548733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997197794.

The product of its digits is 65318400, while the sum is 61.

The spelling of 68935548733 in words is "sixty-eight billion, nine hundred thirty-five million, five hundred forty-eight thousand, seven hundred thirty-three".

Divisors: 1 23 2997197771 68935548733