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605152813 = 2503241771
BaseRepresentation
bin100100000100011…
…110011000101101
31120011200221121011
4210010132120231
52214404342223
6140014305221
720665466626
oct4404363055
91504627534
10605152813
112906582a1
1214a7b8211
13984b10b5
145a528a4d
15381d980d
hex2411e62d

605152813 has 4 divisors (see below), whose sum is σ = 605397088. Its totient is φ = 604908540.

The previous prime is 605152799. The next prime is 605152817. The reversal of 605152813 is 318251506.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-605152813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605152817) by changing a digit.

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, 118383 + ... + 123388.

It is an arithmetic number, because the mean of its divisors is an integer number (151349272).

Almost surely, 2605152813 is an apocalyptic number.

It is an amenable number.

605152813 is a deficient number, since it is larger than the sum of its proper divisors (244275).

605152813 is a wasteful number, since it uses less digits than its factorization.

605152813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244274.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 605152813 is about 24599.8539223305. The cubic root of 605152813 is about 845.8402589115.

The spelling of 605152813 in words is "six hundred five million, one hundred fifty-two thousand, eight hundred thirteen".

Divisors: 1 2503 241771 605152813