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71071021627775 = 52131321165541307
BaseRepresentation
bin10000001010001110000010…
…111111110111100101111111
3100022122022201200202200222222
4100022032002333313211333
533303411423014042100
6411053324313555555
720653466112201251
oct2012160277674577
9308568650680888
1071071021627775
1120711061989164
127b7a059415bbb
133086c78c8a360
141379bda461cd1
15833ac13c2485
hex40a382ff797f

71071021627775 has 24 divisors (see below), whose sum is σ = 94978994382384. Its totient is φ = 52443485740800.

The previous prime is 71071021627733. The next prime is 71071021627789. The reversal of 71071021627775 is 57772612017017.

It is not a de Polignac number, because 71071021627775 - 214 = 71071021611391 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82341329 + ... + 83199978.

It is an arithmetic number, because the mean of its divisors is an integer number (3957458099266).

Almost surely, 271071021627775 is an apocalyptic number.

71071021627775 is a deficient number, since it is larger than the sum of its proper divisors (23907972754609).

71071021627775 is a wasteful number, since it uses less digits than its factorization.

71071021627775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165542651 (or 165542646 counting only the distinct ones).

The product of its (nonzero) digits is 2016840, while the sum is 53.

The spelling of 71071021627775 in words is "seventy-one trillion, seventy-one billion, twenty-one million, six hundred twenty-seven thousand, seven hundred seventy-five".

Divisors: 1 5 13 25 65 325 1321 6605 17173 33025 85865 429325 165541307 827706535 2152036991 4138532675 10760184955 53800924775 218680066547 1093400332735 2842840865111 5467001663675 14214204325555 71071021627775