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505010005 = 5758913309
BaseRepresentation
bin11110000110011…
…101011101010101
31022012021011111021
4132012131131111
52013240310010
6122040041141
715341341243
oct3606353525
91265234437
10505010005
1123a079545
121211631b1
138081a5b6
144b0db793
152e5078da
hex1e19d755

505010005 has 8 divisors (see below), whose sum is σ = 606137400. Its totient is φ = 403924416.

The previous prime is 505009979. The next prime is 505010053. The reversal of 505010005 is 500010505.

It can be written as a sum of positive squares in 4 ways, for example, as 63968004 + 441042001 = 7998^2 + 21001^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 505010005 - 215 = 504977237 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 31291 + ... + 44599.

It is an arithmetic number, because the mean of its divisors is an integer number (75767175).

Almost surely, 2505010005 is an apocalyptic number.

It is an amenable number.

505010005 is a deficient number, since it is larger than the sum of its proper divisors (101127395).

505010005 is a wasteful number, since it uses less digits than its factorization.

505010005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20903.

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 505010005 is about 22472.4276614700. The cubic root of 505010005 is about 796.3426831250.

The spelling of 505010005 in words is "five hundred five million, ten thousand, five".

Divisors: 1 5 7589 13309 37945 66545 101002001 505010005