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50409983 = 13191271607
BaseRepresentation
bin1100000001001…
…1000111111111
310111212002111102
43000103013333
5100401104413
65000243315
71151322611
oct300230777
9114762442
1050409983
1126500848
1214a7053b
13a59cbc0
1469a2db1
15465b458
hex30131ff

50409983 has 16 divisors (see below), whose sum is σ = 57630720. Its totient is φ = 43708896.

The previous prime is 50409977. The next prime is 50410001. The reversal of 50409983 is 38990405.

It is a cyclic number.

It is not a de Polignac number, because 50409983 - 28 = 50409727 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50409923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30566 + ... + 32172.

It is an arithmetic number, because the mean of its divisors is an integer number (3601920).

Almost surely, 250409983 is an apocalyptic number.

50409983 is a deficient number, since it is larger than the sum of its proper divisors (7220737).

50409983 is a wasteful number, since it uses less digits than its factorization.

50409983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 50409983 is about 7099.9988028168. The cubic root of 50409983 is about 369.4073370376.

The spelling of 50409983 in words is "fifty million, four hundred nine thousand, nine hundred eighty-three".

Divisors: 1 13 19 127 247 1607 1651 2413 20891 30533 31369 204089 396929 2653157 3877691 50409983