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50904619 = 471083077
BaseRepresentation
bin1100001000101…
…1111000101011
310112210020000021
43002023320223
5101012421434
65015021311
71155452653
oct302137053
9115706007
1050904619
1126809437
121506a837
13a71409c
146a91363
154707cb4
hex308be2b

50904619 has 4 divisors (see below), whose sum is σ = 51987744. Its totient is φ = 49821496.

The previous prime is 50904617. The next prime is 50904653. The reversal of 50904619 is 91640905.

50904619 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91640905 = 518328181.

It is a cyclic number.

It is not a de Polignac number, because 50904619 - 21 = 50904617 is a prime.

It is a super-2 number, since 2×509046192 = 5182560471070322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50904611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541492 + ... + 541585.

It is an arithmetic number, because the mean of its divisors is an integer number (12996936).

Almost surely, 250904619 is an apocalyptic number.

50904619 is a deficient number, since it is larger than the sum of its proper divisors (1083125).

50904619 is a wasteful number, since it uses less digits than its factorization.

50904619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083124.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 50904619 is about 7134.7472975572. The cubic root of 50904619 is about 370.6116472036.

The spelling of 50904619 in words is "fifty million, nine hundred four thousand, six hundred nineteen".

Divisors: 1 47 1083077 50904619