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50443145 = 526573797
BaseRepresentation
bin1100000001101…
…1001110001001
310111220202222122
43000123032021
5100403140040
65001101025
71151521364
oct300331611
9114822878
1050443145
1126523755
1214a87775
13a5b201c
1469b10db
1546661b5
hex301b389

50443145 has 8 divisors (see below), whose sum is σ = 60570504. Its totient is φ = 40328704.

The previous prime is 50443139. The next prime is 50443147. The reversal of 50443145 is 54134405.

It can be written as a sum of positive squares in 4 ways, for example, as 203401 + 50239744 = 451^2 + 7088^2 .

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 50443145 - 210 = 50442121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50443147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11387 + ... + 15183.

It is an arithmetic number, because the mean of its divisors is an integer number (7571313).

Almost surely, 250443145 is an apocalyptic number.

It is an amenable number.

50443145 is a deficient number, since it is larger than the sum of its proper divisors (10127359).

50443145 is a wasteful number, since it uses less digits than its factorization.

50443145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6459.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 50443145 is about 7102.3337713740. Note that the first 3 decimals coincide. The cubic root of 50443145 is about 369.4883236471.

The spelling of 50443145 in words is "fifty million, four hundred forty-three thousand, one hundred forty-five".

Divisors: 1 5 2657 3797 13285 18985 10088629 50443145