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8081275665311 = 17826957488107
BaseRepresentation
bin111010110011001000110…
…0100001011101110011111
31001121120011222212222200122
41311212101210023232133
52024400423032242221
625104253051345155
71462565354526542
oct165462144135637
931546158788618
108081275665311
112636282486572
12aa6256a521bb
134680a40c3804
141dd1c8a02859
15e032c418eab
hex7599190bb9f

8081275665311 has 8 divisors (see below), whose sum is σ = 8557679756880. Its totient is φ = 7604986566528.

The previous prime is 8081275665299. The next prime is 8081275665341. The reversal of 8081275665311 is 1135665721808.

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 8081275665311 - 230 = 8080201923487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081275665341) 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, 28603481 + ... + 28884626.

It is an arithmetic number, because the mean of its divisors is an integer number (1069709969610).

Almost surely, 28081275665311 is an apocalyptic number.

8081275665311 is a deficient number, since it is larger than the sum of its proper divisors (476404091569).

8081275665311 is a wasteful number, since it uses less digits than its factorization.

8081275665311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57496393.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 8081275665311 in words is "eight trillion, eighty-one billion, two hundred seventy-five million, six hundred sixty-five thousand, three hundred eleven".

Divisors: 1 17 8269 140573 57488107 977297819 475369156783 8081275665311