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50340287 = 131384277
BaseRepresentation
bin1100000000001…
…0000110111111
310111201112220002
43000002012333
5100341342122
64554544515
71150612454
oct300020677
9114645802
1050340287
1126463448
1214a3813b
13a57726a
14698582b
154645992
hex30021bf

50340287 has 4 divisors (see below), whose sum is σ = 50724696. Its totient is φ = 49955880.

The previous prime is 50340223. The next prime is 50340293. The reversal of 50340287 is 78204305.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78204305 = 515640861.

It is a cyclic number.

It is not a de Polignac number, because 50340287 - 26 = 50340223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50345287) 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 3 ways as a sum of consecutive naturals, for example, 192008 + ... + 192269.

It is an arithmetic number, because the mean of its divisors is an integer number (12681174).

Almost surely, 250340287 is an apocalyptic number.

50340287 is a deficient number, since it is larger than the sum of its proper divisors (384409).

50340287 is a wasteful number, since it uses less digits than its factorization.

50340287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384408.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 50340287 is about 7095.0889353129. The cubic root of 50340287 is about 369.2370130477.

The spelling of 50340287 in words is "fifty million, three hundred forty thousand, two hundred eighty-seven".

Divisors: 1 131 384277 50340287