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71483638417 = 2319116272169
BaseRepresentation
bin100001010010011000…
…0011100001010010001
320211111211002002011121
41002210300130022101
52132344302412132
652501130242241
75110300621042
oct1024460341221
9224454062147
1071483638417
1128352717624
1211a2b886381
13698292b5c9
143661a9a8c9
151cd59c7497
hex10a4c1c291

71483638417 has 8 divisors (see below), whose sum is σ = 74982159360. Its totient is φ = 68017662240.

The previous prime is 71483638411. The next prime is 71483638483.

71483638417 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-71483638417 is a prime.

It is a super-4 number, since 4×714836384174 (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71483638411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8131692 + ... + 8140477.

It is an arithmetic number, because the mean of its divisors is an integer number (9372769920).

Almost surely, 271483638417 is an apocalyptic number.

It is an amenable number.

71483638417 is a deficient number, since it is larger than the sum of its proper divisors (3498520943).

71483638417 is a wasteful number, since it uses less digits than its factorization.

71483638417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16272383.

The product of its digits is 2709504, while the sum is 52.

The spelling of 71483638417 in words is "seventy-one billion, four hundred eighty-three million, six hundred thirty-eight thousand, four hundred seventeen".

Divisors: 1 23 191 4393 16272169 374259887 3107984279 71483638417