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71317471317 = 3712831183123
BaseRepresentation
bin100001001101011011…
…0100100000001010101
320211002020101220202120
41002122312210001111
52132024233040232
652432432530153
75103212334621
oct1023266440125
9224066356676
1071317471317
1128277942844
12119a40b0959
13695738ba91
1436479a4181
151cc610292c
hex109ada4055

71317471317 has 16 divisors (see below), whose sum is σ = 96770078208. Its totient is φ = 46709656560.

The previous prime is 71317471289. The next prime is 71317471319.

71317471317 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 71317471317 - 214 = 71317454933 is a prime.

It is a super-2 number, since 2×713174713172 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71317471319) 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, 531283 + ... + 651840.

It is an arithmetic number, because the mean of its divisors is an integer number (6048129888).

Almost surely, 271317471317 is an apocalyptic number.

It is an amenable number.

71317471317 is a deficient number, since it is larger than the sum of its proper divisors (25452606891).

71317471317 is a wasteful number, since it uses less digits than its factorization.

71317471317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183480.

The product of its digits is 86436, while the sum is 42.

The spelling of 71317471317 in words is "seventy-one billion, three hundred seventeen million, four hundred seventy-one thousand, three hundred seventeen".

Divisors: 1 3 71 213 283 849 20093 60279 1183123 3549369 84001733 252005199 334823809 1004471427 23772490439 71317471317