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13442005 = 523179653
BaseRepresentation
bin110011010001…
…101111010101
3221021220222001
4303101233111
511420121010
61200035301
7222153343
oct63215725
927256861
1013442005
1176511a5
124602b31
132a28465
141adc993
1512a7c3a
hexcd1bd5

13442005 has 16 divisors (see below), whose sum is σ = 16951680. Its totient is φ = 10212928.

The previous prime is 13441963. The next prime is 13442017. The reversal of 13442005 is 50024431.

It is a cyclic number.

It is not a de Polignac number, because 13442005 - 219 = 12917717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20259 + ... + 20911.

It is an arithmetic number, because the mean of its divisors is an integer number (1059480).

Almost surely, 213442005 is an apocalyptic number.

It is an amenable number.

13442005 is a deficient number, since it is larger than the sum of its proper divisors (3509675).

13442005 is a wasteful number, since it uses less digits than its factorization.

13442005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 13442005 is about 3666.3340000606. The cubic root of 13442005 is about 237.7687005023.

Adding to 13442005 its reverse (50024431), we get a palindrome (63466436).

The spelling of 13442005 in words is "thirteen million, four hundred forty-two thousand, five".

Divisors: 1 5 23 115 179 653 895 3265 4117 15019 20585 75095 116887 584435 2688401 13442005