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67141251121 = 7191034901179
BaseRepresentation
bin111110100001111011…
…100011000000110001
320102022012002221122111
4332201323203000301
52100001130013441
650502210005321
74564552134550
oct764173430061
9212265087574
1067141251121
112652453879a
1211019576841
1364400baa79
14336d09bd97
151b2e66e081
hexfa1ee3031

67141251121 has 16 divisors (see below), whose sum is σ = 81555635200. Its totient is φ = 53991376848.

The previous prime is 67141251091. The next prime is 67141251139. The reversal of 67141251121 is 12115214176.

Adding to 67141251121 its reverse (12115214176), we get a palindrome (79256465297).

It is a happy number.

67141251121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 67141251121 - 27 = 67141250993 is a prime.

It is a super-3 number, since 3×671412511213 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67141251421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2436891 + ... + 2464288.

It is an arithmetic number, because the mean of its divisors is an integer number (5097227200).

Almost surely, 267141251121 is an apocalyptic number.

It is an amenable number.

67141251121 is a deficient number, since it is larger than the sum of its proper divisors (14414384079).

67141251121 is a wasteful number, since it uses less digits than its factorization.

67141251121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901308.

The product of its digits is 3360, while the sum is 31.

The spelling of 67141251121 in words is "sixty-seven billion, one hundred forty-one million, two hundred fifty-one thousand, one hundred twenty-one".

Divisors: 1 7 19 103 133 721 1957 13699 4901179 34308253 93122401 504821437 651856807 3533750059 9591607303 67141251121