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193244245 = 538648849
BaseRepresentation
bin10111000010010…
…10110001010101
3111110121211021021
423201022301111
5343432303440
631101521141
74534356205
oct1341126125
9443554237
10193244245
119a099297
12548731b1
133106030c
141b944405
1511e7284a
hexb84ac55

193244245 has 4 divisors (see below), whose sum is σ = 231893100. Its totient is φ = 154595392.

The previous prime is 193244239. The next prime is 193244251. The reversal of 193244245 is 542442391.

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 (193244239) and next prime (193244251).

It can be written as a sum of positive squares in 2 ways, for example, as 142635249 + 50608996 = 11943^2 + 7114^2 .

It is a cyclic number.

It is not a de Polignac number, because 193244245 - 211 = 193242197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 193244245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19324420 + ... + 19324429.

It is an arithmetic number, because the mean of its divisors is an integer number (57973275).

Almost surely, 2193244245 is an apocalyptic number.

It is an amenable number.

193244245 is a deficient number, since it is larger than the sum of its proper divisors (38648855).

193244245 is an equidigital number, since it uses as much as digits as its factorization.

193244245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38648854.

The product of its digits is 34560, while the sum is 34.

The square root of 193244245 is about 13901.2317799539. The cubic root of 193244245 is about 578.1433345829.

The spelling of 193244245 in words is "one hundred ninety-three million, two hundred forty-four thousand, two hundred forty-five".

Divisors: 1 5 38648849 193244245