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493808613 = 3198663309
BaseRepresentation
bin11101011011101…
…110101111100101
31021102012002001220
4131123232233211
52002403333423
6121000010553
715144206154
oct3533565745
91242162056
10493808613
112338187a1
12119460a59
137b3c7c5c
144982359b
152d5439e3
hex1d6eebe5

493808613 has 8 divisors (see below), whose sum is σ = 693064800. Its totient is φ = 311879088.

The previous prime is 493808591. The next prime is 493808617. The reversal of 493808613 is 316808394.

It is a happy number.

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

It is not a de Polignac number, because 493808613 - 29 = 493808101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493808617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4331598 + ... + 4331711.

It is an arithmetic number, because the mean of its divisors is an integer number (86633100).

Almost surely, 2493808613 is an apocalyptic number.

It is an amenable number.

493808613 is a deficient number, since it is larger than the sum of its proper divisors (199256187).

493808613 is a wasteful number, since it uses less digits than its factorization.

493808613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8663331.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 493808613 is about 22221.8048996926. The cubic root of 493808613 is about 790.4108384887.

The spelling of 493808613 in words is "four hundred ninety-three million, eight hundred eight thousand, six hundred thirteen".

Divisors: 1 3 19 57 8663309 25989927 164602871 493808613