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13203053 = 19966347
BaseRepresentation
bin110010010111…
…011001101101
3220211210011222
4302113121231
511334444203
61150553125
7220136603
oct62273155
926753158
1013203053
1174a8716
1245087a5
132973776
141a79873
15125c038
hexc9766d

13203053 has 4 divisors (see below), whose sum is σ = 13269600. Its totient is φ = 13136508.

The previous prime is 13203031. The next prime is 13203083. The reversal of 13203053 is 35030231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13203053 - 28 = 13202797 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 (13203013) 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, 32975 + ... + 33372.

It is an arithmetic number, because the mean of its divisors is an integer number (3317400).

Almost surely, 213203053 is an apocalyptic number.

It is an amenable number.

13203053 is a deficient number, since it is larger than the sum of its proper divisors (66547).

13203053 is an equidigital number, since it uses as much as digits as its factorization.

13203053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66546.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 13203053 is about 3633.6005559225. The cubic root of 13203053 is about 236.3513690200.

Adding to 13203053 its reverse (35030231), we get a palindrome (48233284).

The spelling of 13203053 in words is "thirteen million, two hundred three thousand, fifty-three".

Divisors: 1 199 66347 13203053