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13241605 = 5131012017
BaseRepresentation
bin110010100000…
…110100000101
3220220202001211
4302200310011
511342212410
61151451421
7220360156
oct62406405
926822054
1013241605
117524683
124526b71
132988190
141a8992d
15126868a
hexca0d05

13241605 has 16 divisors (see below), whose sum is σ = 17290224. Its totient is φ = 9676800.

The previous prime is 13241587. The next prime is 13241609. The reversal of 13241605 is 50614231.

It can be written as a sum of positive squares in 8 ways, for example, as 617796 + 12623809 = 786^2 + 3553^2 .

It is not a de Polignac number, because 13241605 - 27 = 13241477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13241609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5557 + ... + 7573.

It is an arithmetic number, because the mean of its divisors is an integer number (1080639).

Almost surely, 213241605 is an apocalyptic number.

It is an amenable number.

13241605 is a deficient number, since it is larger than the sum of its proper divisors (4048619).

13241605 is a wasteful number, since it uses less digits than its factorization.

13241605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13241605 is about 3638.9016199947. The cubic root of 13241605 is about 236.5811886864.

Adding to 13241605 its reverse (50614231), we get a palindrome (63855836).

The spelling of 13241605 in words is "thirteen million, two hundred forty-one thousand, six hundred five".

Divisors: 1 5 13 65 101 505 1313 2017 6565 10085 26221 131105 203717 1018585 2648321 13241605