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13409453 = 313071409
BaseRepresentation
bin110011001001…
…110010101101
3221020021022102
4303021302231
511413100303
61155224445
7221656421
oct63116255
927207272
1013409453
1176297a2
1245a8125
132a166b5
141ad0b81
15129d288
hexcc9cad

13409453 has 8 divisors (see below), whose sum is σ = 13896960. Its totient is φ = 12925440.

The previous prime is 13409441. The next prime is 13409491. The reversal of 13409453 is 35490431.

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

It is a cyclic number.

It is not a de Polignac number, because 13409453 - 216 = 13343917 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 (13409153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8813 + ... + 10221.

It is an arithmetic number, because the mean of its divisors is an integer number (1737120).

Almost surely, 213409453 is an apocalyptic number.

It is an amenable number.

13409453 is a deficient number, since it is larger than the sum of its proper divisors (487507).

13409453 is a wasteful number, since it uses less digits than its factorization.

13409453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 13409453 is about 3661.8919973150. The cubic root of 13409453 is about 237.5766135103.

Adding to 13409453 its reverse (35490431), we get a palindrome (48899884).

The spelling of 13409453 in words is "thirteen million, four hundred nine thousand, four hundred fifty-three".

Divisors: 1 31 307 1409 9517 43679 432563 13409453