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3868036281 = 331093131071
BaseRepresentation
bin1110011010001101…
…1000110010111001
3100222120101121021000
43212203120302321
530410204130111
61435453235213
7164565523464
oct34643306271
910876347230
103868036281
1117054509aa
128bb492b09
13498499185
14289a022db
151798a9c56
hexe68d8cb9

3868036281 has 16 divisors (see below), whose sum is σ = 5735710720. Its totient is φ = 2576311920.

The previous prime is 3868036279. The next prime is 3868036297. The reversal of 3868036281 is 1826308683.

It is not a de Polignac number, because 3868036281 - 21 = 3868036279 is a prime.

It is a super-2 number, since 2×38680362812 = 29923409342264621922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3868036241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36025 + ... + 95046.

It is an arithmetic number, because the mean of its divisors is an integer number (358481920).

Almost surely, 23868036281 is an apocalyptic number.

It is an amenable number.

3868036281 is a deficient number, since it is larger than the sum of its proper divisors (1867674439).

3868036281 is a wasteful number, since it uses less digits than its factorization.

3868036281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132173 (or 132167 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 3868036281 is about 62193.5389007572. The cubic root of 3868036281 is about 1569.7488720271.

The spelling of 3868036281 in words is "three billion, eight hundred sixty-eight million, thirty-six thousand, two hundred eighty-one".

Divisors: 1 3 9 27 1093 3279 9837 29511 131071 393213 1179639 3538917 143260603 429781809 1289345427 3868036281