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270349 = 409661
BaseRepresentation
bin1000010000000001101
3111201211221
41002000031
532122344
65443341
72204122
oct1020015
9451757
10270349
11175132
12110551
1396091
1470749
1555184
hex4200d

270349 has 4 divisors (see below), whose sum is σ = 271420. Its totient is φ = 269280.

The previous prime is 270343. The next prime is 270371. The reversal of 270349 is 943072.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 232324 + 38025 = 482^2 + 195^2 .

It is a cyclic number.

It is not a de Polignac number, because 270349 - 215 = 237581 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79 + ... + 739.

It is an arithmetic number, because the mean of its divisors is an integer number (67855).

2270349 is an apocalyptic number.

It is an amenable number.

270349 is a deficient number, since it is larger than the sum of its proper divisors (1071).

270349 is an equidigital number, since it uses as much as digits as its factorization.

270349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 270349 is about 519.9509592260. The cubic root of 270349 is about 64.6608767740.

The spelling of 270349 in words is "two hundred seventy thousand, three hundred forty-nine".

Divisors: 1 409 661 270349