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50308889 = 232187343
BaseRepresentation
bin1011111111101…
…0011100011001
310111122221211012
42333322130121
5100334341024
64554143305
71150422101
oct277723431
9114587735
1050308889
11264418a4
1214a21b35
13a565b97
146978201
15463b50e
hex2ffa719

50308889 has 4 divisors (see below), whose sum is σ = 52496256. Its totient is φ = 48121524.

The previous prime is 50308883. The next prime is 50308897. The reversal of 50308889 is 98880305.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50308889 - 28 = 50308633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50308883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093649 + ... + 1093694.

It is an arithmetic number, because the mean of its divisors is an integer number (13124064).

Almost surely, 250308889 is an apocalyptic number.

It is an amenable number.

50308889 is a deficient number, since it is larger than the sum of its proper divisors (2187367).

50308889 is a wasteful number, since it uses less digits than its factorization.

50308889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187366.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 50308889 is about 7092.8759329344. The cubic root of 50308889 is about 369.1602308416.

The spelling of 50308889 in words is "fifty million, three hundred eight thousand, eight hundred eighty-nine".

Divisors: 1 23 2187343 50308889