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500145212 = 227234318061
BaseRepresentation
bin11101110011111…
…001110000111100
31021212010000020202
4131303321300330
52011014121322
6121343503032
715252110210
oct3563716074
91255100222
10500145212
11237356556
1211b5b7a78
137c806218
144a5d2940
152dd96292
hex1dcf9c3c

500145212 has 48 divisors (see below), whose sum is σ = 1068114432. Its totient is φ = 200249280.

The previous prime is 500145211. The next prime is 500145221. The reversal of 500145212 is 212541005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500145211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18662 + ... + 36722.

It is an arithmetic number, because the mean of its divisors is an integer number (22252384).

Almost surely, 2500145212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 500145212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534057216).

500145212 is an abundant number, since it is smaller than the sum of its proper divisors (567969220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

500145212 is a wasteful number, since it uses less digits than its factorization.

500145212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18138 (or 18136 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 500145212 is about 22363.9265783091. The cubic root of 500145212 is about 793.7773551074. Note that the first 3 decimals are identical.

Adding to 500145212 its reverse (212541005), we get a palindrome (712686217).

The spelling of 500145212 in words is "five hundred million, one hundred forty-five thousand, two hundred twelve".

Divisors: 1 2 4 7 14 23 28 43 46 86 92 161 172 301 322 602 644 989 1204 1978 3956 6923 13846 18061 27692 36122 72244 126427 252854 415403 505708 776623 830806 1553246 1661612 2907821 3106492 5436361 5815642 10872722 11631284 17862329 21745444 35724658 71449316 125036303 250072606 500145212