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68949147411 = 3234740155057
BaseRepresentation
bin100000000110110110…
…0000111111100010011
320120222011222121010100
41000031230013330103
52112201440204121
651401431303443
74660424040324
oct1001554077423
9216864877110
1068949147411
1127271aa5a61
1211442b1ab83
13666a813ca1
1434a122c44b
151bd8237026
hex100db07f13

68949147411 has 24 divisors (see below), whose sum is σ = 100131121584. Its totient is φ = 45718502400.

The previous prime is 68949147409. The next prime is 68949147413. The reversal of 68949147411 is 11474194986.

It is a happy number.

68949147411 is a `hidden beast` number, since 6 + 89 + 4 + 9 + 147 + 411 = 666.

It is an interprime number because it is at equal distance from previous prime (68949147409) and next prime (68949147413).

It is not a de Polignac number, because 68949147411 - 21 = 68949147409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68949147413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1224795 + ... + 1279851.

It is an arithmetic number, because the mean of its divisors is an integer number (4172130066).

Almost surely, 268949147411 is an apocalyptic number.

68949147411 is a deficient number, since it is larger than the sum of its proper divisors (31181974173).

68949147411 is a wasteful number, since it uses less digits than its factorization.

68949147411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55811 (or 55808 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The spelling of 68949147411 in words is "sixty-eight billion, nine hundred forty-nine million, one hundred forty-seven thousand, four hundred eleven".

Divisors: 1 3 9 347 401 1041 1203 3123 3609 55057 139147 165171 417441 495513 1252323 19104779 22077857 57314337 66233571 171943011 198700713 7661016379 22983049137 68949147411