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10800145 = 52160029
BaseRepresentation
bin101001001100…
…110000010001
3202022201000101
4221030300101
510231101040
61023252401
7160541206
oct51146021
922281011
1010800145
116107344
12374a101
132311b25
141611cad
15e3509a
hexa4cc11

10800145 has 4 divisors (see below), whose sum is σ = 12960180. Its totient is φ = 8640112.

The previous prime is 10800143. The next prime is 10800157. The reversal of 10800145 is 54100801.

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 2982529 + 7817616 = 1727^2 + 2796^2 .

It is a cyclic number.

It is not a de Polignac number, because 10800145 - 21 = 10800143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10800143) 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, 1080010 + ... + 1080019.

It is an arithmetic number, because the mean of its divisors is an integer number (3240045).

Almost surely, 210800145 is an apocalyptic number.

It is an amenable number.

10800145 is a deficient number, since it is larger than the sum of its proper divisors (2160035).

10800145 is an equidigital number, since it uses as much as digits as its factorization.

10800145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160034.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 10800145 is about 3286.3574060044. The cubic root of 10800145 is about 221.0428791447.

Adding to 10800145 its reverse (54100801), we get a palindrome (64900946).

The spelling of 10800145 in words is "ten million, eight hundred thousand, one hundred forty-five".

Divisors: 1 5 2160029 10800145