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68882428887 = 324195273069
BaseRepresentation
bin100000000100110110…
…1100111001111010111
320120210112102221111220
41000021231213033113
52112032400211022
651351045301423
74655653661556
oct1001155471727
9216715387456
1068882428887
1127238376388
1211424704873
136659a53c7c
143496421d9d
151bd245885c
hex1009b673d7

68882428887 has 8 divisors (see below), whose sum is σ = 92224331760. Its totient is φ = 45731072640.

The previous prime is 68882428859. The next prime is 68882428897. The reversal of 68882428887 is 78882428886.

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

It is not a de Polignac number, because 68882428887 - 27 = 68882428759 is a prime.

It is a super-2 number, since 2×688824288872 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68882428847) 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, 47635812 + ... + 47637257.

It is an arithmetic number, because the mean of its divisors is an integer number (11528041470).

Almost surely, 268882428887 is an apocalyptic number.

68882428887 is a deficient number, since it is larger than the sum of its proper divisors (23341902873).

68882428887 is a wasteful number, since it uses less digits than its factorization.

68882428887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95273313.

The product of its digits is 176160768, while the sum is 69.

Subtracting 68882428887 from its reverse (78882428886), we obtain a palindrome (9999999999).

The spelling of 68882428887 in words is "sixty-eight billion, eight hundred eighty-two million, four hundred twenty-eight thousand, eight hundred eighty-seven".

Divisors: 1 3 241 723 95273069 285819207 22960809629 68882428887