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50133481 is a prime number
BaseRepresentation
bin1011111100111…
…1100111101001
310111100001012121
42333033213221
5100313232411
64550311241
71146061516
oct277174751
9114301177
1050133481
1126332032
1214958521
13a5040a8
14693030d
154604571
hex2fcf9e9

50133481 has 2 divisors, whose sum is σ = 50133482. Its totient is φ = 50133480.

The previous prime is 50133463. The next prime is 50133509. The reversal of 50133481 is 18433105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48776256 + 1357225 = 6984^2 + 1165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50133481 is a prime.

It is a super-2 number, since 2×501334812 = 5026731834354722, which contains 22 as substring.

It is the 7081-st Hogben number.

It is not a weakly prime, because it can be changed into another prime (50133401) by changing a digit.

It is a nontrivial repunit in base 7080.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25066740 + 25066741.

It is an arithmetic number, because the mean of its divisors is an integer number (25066741).

Almost surely, 250133481 is an apocalyptic number.

It is an amenable number.

50133481 is a deficient number, since it is larger than the sum of its proper divisors (1).

50133481 is an equidigital number, since it uses as much as digits as its factorization.

50133481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 50133481 is about 7080.5000529624. The cubic root of 50133481 is about 368.7306907058.

Adding to 50133481 its reverse (18433105), we get a palindrome (68566586).

The spelling of 50133481 in words is "fifty million, one hundred thirty-three thousand, four hundred eighty-one".