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71246864217 = 343552301273
BaseRepresentation
bin100001001011010100…
…1001101111101011001
320210220022112201000210
41002112221031331121
52131403144123332
652421431321333
75101364232204
oct1022651157531
9223808481023
1071246864217
1128240aa7671
1211984520249
136945869b29
14363c46493b
151cbed06ecc
hex1096a4df59

71246864217 has 8 divisors (see below), whose sum is σ = 97205024224. Its totient is φ = 46393306848.

The previous prime is 71246864203. The next prime is 71246864279.

71246864217 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 71246864217 - 24 = 71246864201 is a prime.

It is a super-2 number, since 2×712468642172 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71246864317) 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, 276150508 + ... + 276150765.

It is an arithmetic number, because the mean of its divisors is an integer number (12150628028).

Almost surely, 271246864217 is an apocalyptic number.

It is an amenable number.

71246864217 is a deficient number, since it is larger than the sum of its proper divisors (25958160007).

71246864217 is a wasteful number, since it uses less digits than its factorization.

71246864217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552301319.

The product of its digits is 903168, while the sum is 48.

The spelling of 71246864217 in words is "seventy-one billion, two hundred forty-six million, eight hundred sixty-four thousand, two hundred seventeen".

Divisors: 1 3 43 129 552301273 1656903819 23748954739 71246864217