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50505050105 = 590901111121
BaseRepresentation
bin101111000010010101…
…011110011111111001
311211100210011101010022
4233002111132133321
51311413243100410
635111322300225
73435363562016
oct570225363771
9154323141108
1050505050105
111a467869734
129956057675
1349bb5a2643
14263183c70d
1514a8da9455
hexbc255e7f9

50505050105 has 8 divisors (see below), whose sum is σ = 60607272264. Its totient is φ = 40403232000.

The previous prime is 50505050081. The next prime is 50505050191. The reversal of 50505050105 is 50105050505.

It can be written as a sum of positive squares in 4 ways, for example, as 981443584 + 49523606521 = 31328^2 + 222539^2 .

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

It is not a de Polignac number, because 50505050105 - 230 = 49431308281 is a prime.

It is a super-2 number, since 2×505050501052 (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398945 + ... + 510065.

It is an arithmetic number, because the mean of its divisors is an integer number (7575909033).

Almost surely, 250505050105 is an apocalyptic number.

It is an amenable number.

50505050105 is a deficient number, since it is larger than the sum of its proper divisors (10102222159).

50505050105 is a wasteful number, since it uses less digits than its factorization.

50505050105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202027.

The product of its (nonzero) digits is 3125, while the sum is 26.

The spelling of 50505050105 in words is "fifty billion, five hundred five million, fifty thousand, one hundred five".

Divisors: 1 5 90901 111121 454505 555605 10101010021 50505050105