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5181271108 = 2213983101363
BaseRepresentation
bin1001101001101001…
…11110110001000100
3111101002110211202221
410310310332301010
541102401133413
62214044342124
7242253035446
oct46464766104
914332424687
105181271108
112219768742
121007244944
136475891c0
143721aa496
15204d1168d
hex134d3ec44

5181271108 has 24 divisors (see below), whose sum is σ = 9774733248. Its totient is φ = 2388899616.

The previous prime is 5181271093. The next prime is 5181271163. The reversal of 5181271108 is 8011721815.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435 + ... + 101797.

It is an arithmetic number, because the mean of its divisors is an integer number (407280552).

Almost surely, 25181271108 is an apocalyptic number.

It is an amenable number.

5181271108 is a deficient number, since it is larger than the sum of its proper divisors (4593462140).

5181271108 is a wasteful number, since it uses less digits than its factorization.

5181271108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102363 (or 102361 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 34.

The square root of 5181271108 is about 71981.0468665190. The cubic root of 5181271108 is about 1730.3957471685.

The spelling of 5181271108 in words is "five billion, one hundred eighty-one million, two hundred seventy-one thousand, one hundred eight".

Divisors: 1 2 4 13 26 52 983 1966 3932 12779 25558 51116 101363 202726 405452 1317719 2635438 5270876 99639829 199279658 398559316 1295317777 2590635554 5181271108