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50144445 = 3251385717
BaseRepresentation
bin1011111101001…
…0010010111101
310111100121020200
42333102102331
5100314110240
64550434113
71146135501
oct277222275
9114317220
1050144445
112633a29a
1214962939
13a509090
146934301
154607930
hex2fd24bd

50144445 has 24 divisors (see below), whose sum is σ = 93604056. Its totient is φ = 24686208.

The previous prime is 50144411. The next prime is 50144447. The reversal of 50144445 is 54444105.

It can be written as a sum of positive squares in 4 ways, for example, as 60516 + 50083929 = 246^2 + 7077^2 .

It is not a de Polignac number, because 50144445 - 27 = 50144317 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50144447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42274 + ... + 43443.

It is an arithmetic number, because the mean of its divisors is an integer number (3900169).

Almost surely, 250144445 is an apocalyptic number.

It is an amenable number.

50144445 is a deficient number, since it is larger than the sum of its proper divisors (43459611).

50144445 is a wasteful number, since it uses less digits than its factorization.

50144445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85741 (or 85738 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 50144445 is about 7081.2742497378. The cubic root of 50144445 is about 368.7575687425.

The spelling of 50144445 in words is "fifty million, one hundred forty-four thousand, four hundred forty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 85717 257151 428585 771453 1114321 1285755 3342963 3857265 5571605 10028889 16714815 50144445