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13442065 = 571331953
BaseRepresentation
bin110011010001…
…110000010001
3221021221001021
4303101300101
511420121230
61200035441
7222153460
oct63216021
927257037
1013442065
11765124a
124602b81
132a284b0
141adc9d7
1512a7c7a
hexcd1c11

13442065 has 32 divisors (see below), whose sum is σ = 20514816. Its totient is φ = 8225280.

The previous prime is 13442057. The next prime is 13442069. The reversal of 13442065 is 56024431.

It is not a de Polignac number, because 13442065 - 23 = 13442057 is a prime.

It is a super-2 number, since 2×134420652 = 361378222928450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13442069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13629 + ... + 14581.

It is an arithmetic number, because the mean of its divisors is an integer number (641088).

Almost surely, 213442065 is an apocalyptic number.

It is an amenable number.

13442065 is a deficient number, since it is larger than the sum of its proper divisors (7072751).

13442065 is a wasteful number, since it uses less digits than its factorization.

13442065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 13442065 is about 3666.3421826120. The cubic root of 13442065 is about 237.7690542715.

Adding to 13442065 its reverse (56024431), we get a palindrome (69466496).

The spelling of 13442065 in words is "thirteen million, four hundred forty-two thousand, sixty-five".

Divisors: 1 5 7 13 31 35 65 91 155 217 403 455 953 1085 2015 2821 4765 6671 12389 14105 29543 33355 61945 86723 147715 206801 384059 433615 1034005 1920295 2688413 13442065