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50049881 = 77149983
BaseRepresentation
bin1011111011101…
…1001101011001
310111011210112022
42332323031121
5100303044011
64544424225
71145263010
oct276731531
9114153468
1050049881
1126285242
1214918075
13a4a501b
14690ba77
1545d98db
hex2fbb359

50049881 has 4 divisors (see below), whose sum is σ = 57199872. Its totient is φ = 42899892.

The previous prime is 50049851. The next prime is 50049899. The reversal of 50049881 is 18894005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 50049881 - 218 = 49787737 is a prime.

It is a super-2 number, since 2×500498812 = 5009981176228322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50049851) 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, 3574985 + ... + 3574998.

It is an arithmetic number, because the mean of its divisors is an integer number (14299968).

Almost surely, 250049881 is an apocalyptic number.

It is an amenable number.

50049881 is a deficient number, since it is larger than the sum of its proper divisors (7149991).

50049881 is an equidigital number, since it uses as much as digits as its factorization.

50049881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7149990.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 50049881 is about 7074.5940519580. The cubic root of 50049881 is about 368.5256179310.

The spelling of 50049881 in words is "fifty million, forty-nine thousand, eight hundred eighty-one".

Divisors: 1 7 7149983 50049881