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13200145 = 57377147
BaseRepresentation
bin110010010110…
…101100010001
3220211122012021
4302112230101
511334401040
61150531441
7220125250
oct62265421
926748167
1013200145
1174a6512
124506b81
13297234a
141a78797
15125b24a
hexc96b11

13200145 has 8 divisors (see below), whose sum is σ = 18103104. Its totient is φ = 9051504.

The previous prime is 13200119. The next prime is 13200169. The reversal of 13200145 is 54100231.

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

It is not a de Polignac number, because 13200145 - 213 = 13191953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188539 + ... + 188608.

It is an arithmetic number, because the mean of its divisors is an integer number (2262888).

Almost surely, 213200145 is an apocalyptic number.

It is an amenable number.

13200145 is a deficient number, since it is larger than the sum of its proper divisors (4902959).

13200145 is an equidigital number, since it uses as much as digits as its factorization.

13200145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377159.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 13200145 is about 3633.2003798304. The cubic root of 13200145 is about 236.3340154516.

Adding to 13200145 its reverse (54100231), we get a palindrome (67300376).

The spelling of 13200145 in words is "thirteen million, two hundred thousand, one hundred forty-five".

Divisors: 1 5 7 35 377147 1885735 2640029 13200145