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271090 = 2527109
BaseRepresentation
bin1000010001011110010
3111202212101
41002023302
532133330
65451014
72206231
oct1021362
9452771
10271090
11175746
12110a6a
1396511
1470b18
15554ca
hex422f2

271090 has 8 divisors (see below), whose sum is σ = 487980. Its totient is φ = 108432.

The previous prime is 271079. The next prime is 271097. The reversal of 271090 is 90172.

It can be written as a sum of positive squares in 2 ways, for example, as 263169 + 7921 = 513^2 + 89^2 .

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

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (271097) by changing a digit.

271090 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13545 + ... + 13564.

2271090 is an apocalyptic number.

271090 is a deficient number, since it is larger than the sum of its proper divisors (216890).

271090 is a wasteful number, since it uses less digits than its factorization.

271090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27116.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 271090 is about 520.6630388265. The cubic root of 271090 is about 64.7198992483.

Adding to 271090 its product of nonzero digits (126), we get a triangular number (271216 = T736).

The spelling of 271090 in words is "two hundred seventy-one thousand, ninety".

Divisors: 1 2 5 10 27109 54218 135545 271090