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68214424171 = 531739373999
BaseRepresentation
bin111111100001111001…
…011000001001101011
320112001222110210022111
4333201321120021223
52104200343033141
651200503503151
74633263016135
oct774171301153
9215058423274
1068214424171
1126a2529a573
1211278a57ab7
136581537aca
143431816055
151b939a6381
hexfe1e5826b

68214424171 has 8 divisors (see below), whose sum is σ = 69506424000. Its totient is φ = 66922607232.

The previous prime is 68214424129. The next prime is 68214424231. The reversal of 68214424171 is 17142441286.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68214424171 - 225 = 68180869739 is a prime.

It is a super-2 number, since 2×682144241712 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68214424771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884830 + ... + 958828.

It is an arithmetic number, because the mean of its divisors is an integer number (8688303000).

Almost surely, 268214424171 is an apocalyptic number.

68214424171 is a deficient number, since it is larger than the sum of its proper divisors (1291999829).

68214424171 is a wasteful number, since it uses less digits than its factorization.

68214424171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91445.

The product of its digits is 86016, while the sum is 40.

The spelling of 68214424171 in words is "sixty-eight billion, two hundred fourteen million, four hundred twenty-four thousand, one hundred seventy-one".

Divisors: 1 53 17393 73999 921829 3921947 1287064607 68214424171