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50270009 = 64217829
BaseRepresentation
bin1011111111000…
…0111100111001
310111120222111012
42333300330321
5100332120014
64553243305
71150200536
oct277607471
9114528435
1050270009
1126415669
1214a03535
13a55128a
146967d8d
15462ec3e
hex2ff0f39

50270009 has 4 divisors (see below), whose sum is σ = 50284260. Its totient is φ = 50255760.

The previous prime is 50269997. The next prime is 50270027. The reversal of 50270009 is 90007205.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90007205 = 518001441.

It can be written as a sum of positive squares in 2 ways, for example, as 9985600 + 40284409 = 3160^2 + 6347^2 .

It is a cyclic number.

It is not a de Polignac number, because 50270009 - 28 = 50269753 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50270069) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2507 + ... + 10335.

It is an arithmetic number, because the mean of its divisors is an integer number (12571065).

Almost surely, 250270009 is an apocalyptic number.

It is an amenable number.

50270009 is a deficient number, since it is larger than the sum of its proper divisors (14251).

50270009 is an equidigital number, since it uses as much as digits as its factorization.

50270009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14250.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 50270009 is about 7090.1346249560. The cubic root of 50270009 is about 369.0651075006.

The spelling of 50270009 in words is "fifty million, two hundred seventy thousand, nine".

Divisors: 1 6421 7829 50270009