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13245433 = 102112973
BaseRepresentation
bin110010100001…
…101111111001
3220220221022121
4302201233321
511342323213
61151521241
7220404265
oct62415771
926827277
1013245433
117527543
124529221
132989b46
141a8b0a5
15126988d
hexca1bf9

13245433 has 4 divisors (see below), whose sum is σ = 13259428. Its totient is φ = 13231440.

The previous prime is 13245409. The next prime is 13245437. The reversal of 13245433 is 33454231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2663424 + 10582009 = 1632^2 + 3253^2 .

It is a cyclic number.

It is not a de Polignac number, because 13245433 - 221 = 11148281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13245398 and 13245407.

It is not an unprimeable number, because it can be changed into a prime (13245437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5466 + ... + 7507.

It is an arithmetic number, because the mean of its divisors is an integer number (3314857).

Almost surely, 213245433 is an apocalyptic number.

It is an amenable number.

13245433 is a deficient number, since it is larger than the sum of its proper divisors (13995).

13245433 is a wasteful number, since it uses less digits than its factorization.

13245433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13994.

The product of its digits is 4320, while the sum is 25.

The square root of 13245433 is about 3639.4275648789. The cubic root of 13245433 is about 236.6039841491.

Adding to 13245433 its reverse (33454231), we get a palindrome (46699664).

The spelling of 13245433 in words is "thirteen million, two hundred forty-five thousand, four hundred thirty-three".

Divisors: 1 1021 12973 13245433