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683003245 = 5136600649
BaseRepresentation
bin101000101101011…
…100110101101101
31202121012011022111
4220231130311231
52344322100440
6151435044021
722632301051
oct5055346555
91677164274
10683003245
113205a04a1
121708a0611
13ab66ac42
14669d1c61
153ee664ea
hex28b5cd6d

683003245 has 4 divisors (see below), whose sum is σ = 819603900. Its totient is φ = 546402592.

The previous prime is 683003221. The next prime is 683003249. The reversal of 683003245 is 542300386.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542300386 = 2271150193.

It can be written as a sum of positive squares in 2 ways, for example, as 337861161 + 345142084 = 18381^2 + 18578^2 .

It is a cyclic number.

It is not a de Polignac number, because 683003245 - 25 = 683003213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683003249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68300320 + ... + 68300329.

It is an arithmetic number, because the mean of its divisors is an integer number (204900975).

Almost surely, 2683003245 is an apocalyptic number.

It is an amenable number.

683003245 is a deficient number, since it is larger than the sum of its proper divisors (136600655).

683003245 is a wasteful number, since it uses less digits than its factorization.

683003245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136600654.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 683003245 is about 26134.3307739073. The cubic root of 683003245 is about 880.6586172279.

The spelling of 683003245 in words is "six hundred eighty-three million, three thousand, two hundred forty-five".

Divisors: 1 5 136600649 683003245