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50471390 = 255047139
BaseRepresentation
bin1100000010001…
…0000111011110
310111222012201202
43000202013132
5100410041030
65001435502
71151666624
oct300420736
9114865652
1050471390
11265429a2
1214a9bb92
13a5c1b38
1469bb514
15466e745
hex30221de

50471390 has 8 divisors (see below), whose sum is σ = 90848520. Its totient is φ = 20188552.

The previous prime is 50471389. The next prime is 50471413. The reversal of 50471390 is 9317405.

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

It is a super-2 number, since 2×504713902 = 5094722417064200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 2523560 + ... + 2523579.

It is an arithmetic number, because the mean of its divisors is an integer number (11356065).

Almost surely, 250471390 is an apocalyptic number.

50471390 is a deficient number, since it is larger than the sum of its proper divisors (40377130).

50471390 is a wasteful number, since it uses less digits than its factorization.

50471390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5047146.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 50471390 is about 7104.3219240122. The cubic root of 50471390 is about 369.5572742147.

Adding to 50471390 its reverse (9317405), we get a palindrome (59788795).

The spelling of 50471390 in words is "fifty million, four hundred seventy-one thousand, three hundred ninety".

Divisors: 1 2 5 10 5047139 10094278 25235695 50471390