Search a number
-
+
50289305 = 511914351
BaseRepresentation
bin1011111111010…
…1101010011001
310111121221221212
42333311222121
5100333224210
64553512505
71150311023
oct277655231
9114557855
1050289305
1126429110
1214a12735
13a559cb1
146971013
154635805
hex2ff5a99

50289305 has 8 divisors (see below), whose sum is σ = 65833344. Its totient is φ = 36574000.

The previous prime is 50289301. The next prime is 50289311. The reversal of 50289305 is 50398205.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50289305 - 22 = 50289301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50289301) 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 7 ways as a sum of consecutive naturals, for example, 457121 + ... + 457230.

It is an arithmetic number, because the mean of its divisors is an integer number (8229168).

Almost surely, 250289305 is an apocalyptic number.

50289305 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50289305 is a deficient number, since it is larger than the sum of its proper divisors (15544039).

50289305 is a wasteful number, since it uses less digits than its factorization.

50289305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914367.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 50289305 is about 7091.4952584064. The cubic root of 50289305 is about 369.1123229906.

Subtracting 50289305 from its reverse (50398205), we obtain a square (108900 = 3302).

The spelling of 50289305 in words is "fifty million, two hundred eighty-nine thousand, three hundred five".

Divisors: 1 5 11 55 914351 4571755 10057861 50289305