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68771830911 = 373274849091
BaseRepresentation
bin100000000001100011…
…1101101110001111111
320120111211022222121120
41000003013231301333
52111321042042121
651332055002023
74653141626520
oct1000307556177
9216454288546
1068771830911
11271909a64a3
12113b3669313
13663cb6c694
143485872847
151bc78adbc6
hex10031edc7f

68771830911 has 8 divisors (see below), whose sum is σ = 104795170944. Its totient is φ = 39298189080.

The previous prime is 68771830891. The next prime is 68771830943. The reversal of 68771830911 is 11903817786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68771830911 - 27 = 68771830783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68771831911) 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 7 ways as a sum of consecutive naturals, for example, 1637424525 + ... + 1637424566.

It is an arithmetic number, because the mean of its divisors is an integer number (13099396368).

Almost surely, 268771830911 is an apocalyptic number.

68771830911 is a deficient number, since it is larger than the sum of its proper divisors (36023340033).

68771830911 is a wasteful number, since it uses less digits than its factorization.

68771830911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3274849101.

The product of its (nonzero) digits is 508032, while the sum is 51.

The spelling of 68771830911 in words is "sixty-eight billion, seven hundred seventy-one million, eight hundred thirty thousand, nine hundred eleven".

Divisors: 1 3 7 21 3274849091 9824547273 22923943637 68771830911