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505250830 = 25718893821
BaseRepresentation
bin11110000111011…
…000010000001110
31022012201101211201
4132013120100032
52013321011310
6122045140114
715343363330
oct3607302016
91265641751
10505250830
1123a223477
1212125a63a
13808a30b6
144b161450
152e553e3a
hex1e1d840e

505250830 has 32 divisors (see below), whose sum is σ = 1040195520. Its totient is φ = 173091840.

The previous prime is 505250827. The next prime is 505250833. The reversal of 505250830 is 38052505.

It is an interprime number because it is at equal distance from previous prime (505250827) and next prime (505250833).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505250833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130320 + ... + 134140.

It is an arithmetic number, because the mean of its divisors is an integer number (32506110).

Almost surely, 2505250830 is an apocalyptic number.

505250830 is an abundant number, since it is smaller than the sum of its proper divisors (534944690).

505250830 is a wasteful number, since it uses less digits than its factorization.

505250830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 505250830 is about 22477.7852556697. The cubic root of 505250830 is about 796.4692474492.

The spelling of 505250830 in words is "five hundred five million, two hundred fifty thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 1889 3778 3821 7642 9445 13223 18890 19105 26446 26747 38210 53494 66115 132230 133735 267470 7217869 14435738 36089345 50525083 72178690 101050166 252625415 505250830