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271309138 = 2677920011
BaseRepresentation
bin10000001010111…
…101100101010010
3200220111221011121
4100022331211102
51023423343023
642531032454
76503042512
oct2012754522
9626457147
10271309138
1112a168631
1276a3b72a
1344293969
1428065842
1518c42d5d
hex102bd952

271309138 has 8 divisors (see below), whose sum is σ = 407044080. Its totient is φ = 135627780.

The previous prime is 271309133. The next prime is 271309141. The reversal of 271309138 is 831903172.

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

It is not an unprimeable number, because it can be changed into a prime (271309133) 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 3 ways as a sum of consecutive naturals, for example, 3553 + ... + 23563.

It is an arithmetic number, because the mean of its divisors is an integer number (50880510).

Almost surely, 2271309138 is an apocalyptic number.

271309138 is a deficient number, since it is larger than the sum of its proper divisors (135734942).

271309138 is a wasteful number, since it uses less digits than its factorization.

271309138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26792.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 271309138 is about 16471.4643550596. The cubic root of 271309138 is about 647.3733351911.

The spelling of 271309138 in words is "two hundred seventy-one million, three hundred nine thousand, one hundred thirty-eight".

Divisors: 1 2 6779 13558 20011 40022 135654569 271309138