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505434244 = 22718051223
BaseRepresentation
bin11110001000000…
…101000010000100
31022020001201102211
4132020011002010
52013342343434
6122053113204
715345056140
oct3610050204
91266051384
10505434244
1123a339257
12121328804
1380938723
144b1ac220
152e58d464
hex1e205084

505434244 has 12 divisors (see below), whose sum is σ = 1010868544. Its totient is φ = 216614664.

The previous prime is 505434239. The next prime is 505434247. The reversal of 505434244 is 442434505.

505434244 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (505434247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9025584 + ... + 9025639.

Almost surely, 2505434244 is an apocalyptic number.

It is an amenable number.

505434244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

505434244 is a wasteful number, since it uses less digits than its factorization.

505434244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18051234 (or 18051232 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 505434244 is about 22481.8647803068. The cubic root of 505434244 is about 796.5656127452.

Adding to 505434244 its reverse (442434505), we get a palindrome (947868749).

The spelling of 505434244 in words is "five hundred five million, four hundred thirty-four thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 18051223 36102446 72204892 126358561 252717122 505434244