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605080505 = 5297335693
BaseRepresentation
bin100100000100001…
…100101110111001
31120011120021102002
4210010030232321
52214400034010
6140012550345
720665046051
oct4404145671
91504507362
10605080505
11290608a37
1214a7823b5
1398487203
145a50a561
15381c31a5
hex2410cbb9

605080505 has 16 divisors (see below), whose sum is σ = 752291280. Its totient is φ = 466652928.

The previous prime is 605080493. The next prime is 605080519. The reversal of 605080505 is 505080506.

It can be written as a sum of positive squares in 8 ways, for example, as 1297321 + 603783184 = 1139^2 + 24572^2 .

It is a cyclic number.

It is not a de Polignac number, because 605080505 - 28 = 605080249 is a prime.

It is a super-2 number, since 2×6050805052 = 732244835062110050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 103439 + ... + 109131.

It is an arithmetic number, because the mean of its divisors is an integer number (47018205).

Almost surely, 2605080505 is an apocalyptic number.

It is an amenable number.

605080505 is a deficient number, since it is larger than the sum of its proper divisors (147210775).

605080505 is a wasteful number, since it uses less digits than its factorization.

605080505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6460.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 605080505 is about 24598.3841949019. The cubic root of 605080505 is about 845.8065685487.

Subtracting from 605080505 its reverse (505080506), we obtain a palindrome (99999999).

The spelling of 605080505 in words is "six hundred five million, eighty thousand, five hundred five".

Divisors: 1 5 29 145 733 3665 5693 21257 28465 106285 165097 825485 4172969 20864845 121016101 605080505