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12800245 = 52560049
BaseRepresentation
bin110000110101…
…000011110101
3220002022122011
4300311003311
511234101440
61134204221
7213541333
oct60650365
926068564
1012800245
117253017
124353671
132862313
1419b2b53
1511cc9ea
hexc350f5

12800245 has 4 divisors (see below), whose sum is σ = 15360300. Its totient is φ = 10240192.

The previous prime is 12800239. The next prime is 12800251. The reversal of 12800245 is 54200821.

12800245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (12800239) and next prime (12800251).

It can be written as a sum of positive squares in 2 ways, for example, as 10195249 + 2604996 = 3193^2 + 1614^2 .

It is a cyclic number.

It is not a de Polignac number, because 12800245 - 23 = 12800237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280020 + ... + 1280029.

It is an arithmetic number, because the mean of its divisors is an integer number (3840075).

Almost surely, 212800245 is an apocalyptic number.

It is an amenable number.

12800245 is a deficient number, since it is larger than the sum of its proper divisors (2560055).

12800245 is an equidigital number, since it uses as much as digits as its factorization.

12800245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560054.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 12800245 is about 3577.7430036267. The cubic root of 12800245 is about 233.9229115149.

The spelling of 12800245 in words is "twelve million, eight hundred thousand, two hundred forty-five".

Divisors: 1 5 2560049 12800245