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13580242 = 213522317
BaseRepresentation
bin110011110011…
…011111010010
3221112221120221
4303303133102
511434031432
61203023254
7223300354
oct63633722
927487527
1013580242
117736045
12466ab2a
132a76360
141b370d4
1512d3b97
hexcf37d2

13580242 has 8 divisors (see below), whose sum is σ = 21937356. Its totient is φ = 6267792.

The previous prime is 13580233. The next prime is 13580261. The reversal of 13580242 is 24208531.

It can be written as a sum of positive squares in 2 ways, for example, as 11840481 + 1739761 = 3441^2 + 1319^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261133 + ... + 261184.

Almost surely, 213580242 is an apocalyptic number.

13580242 is a deficient number, since it is larger than the sum of its proper divisors (8357114).

13580242 is a wasteful number, since it uses less digits than its factorization.

13580242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522332.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 13580242 is about 3685.1379892753. The cubic root of 13580242 is about 238.5809900056.

Adding to 13580242 its reverse (24208531), we get a palindrome (37788773).

The spelling of 13580242 in words is "thirteen million, five hundred eighty thousand, two hundred forty-two".

Divisors: 1 2 13 26 522317 1044634 6790121 13580242