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50281121 = 1117268883
BaseRepresentation
bin1011111111001…
…1101010100001
310111121112201202
42333303222201
5100332443441
64553410545
71150245122
oct277635241
9114545652
1050281121
1126422a50
1214a09a55
13a556357
14696c049
15463319b
hex2ff3aa1

50281121 has 8 divisors (see below), whose sum is σ = 58078944. Its totient is φ = 43021120.

The previous prime is 50281111. The next prime is 50281123. The reversal of 50281121 is 12118205.

It is a happy number.

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 50281121 - 26 = 50281057 is a prime.

It is a super-2 number, since 2×502811212 = 5056382258033282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50281093 and 50281102.

It is not an unprimeable number, because it can be changed into a prime (50281123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134255 + ... + 134628.

It is an arithmetic number, because the mean of its divisors is an integer number (7259868).

Almost surely, 250281121 is an apocalyptic number.

It is an amenable number.

50281121 is a deficient number, since it is larger than the sum of its proper divisors (7797823).

50281121 is a wasteful number, since it uses less digits than its factorization.

50281121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268911.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 50281121 is about 7090.9182057051. The cubic root of 50281121 is about 369.0922989906.

Adding to 50281121 its reverse (12118205), we get a palindrome (62399326).

The spelling of 50281121 in words is "fifty million, two hundred eighty-one thousand, one hundred twenty-one".

Divisors: 1 11 17 187 268883 2957713 4571011 50281121