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505130460 = 223543195787
BaseRepresentation
bin11110000110111…
…010110111011100
31022012111021201120
4132012322313130
52013303133320
6122042410540
715342352362
oct3606726734
91265437646
10505130460
1123a150a9a
12121200a50
1380860383
144b12d632
152e52d440
hex1e1baddc

505130460 has 48 divisors (see below), whose sum is σ = 1447264896. Its totient is φ = 131568192.

The previous prime is 505130459. The next prime is 505130467. The reversal of 505130460 is 64031505.

It is a self number, because there is not a number n which added to its sum of digits gives 505130460.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505130467) 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, 95314 + ... + 100473.

It is an arithmetic number, because the mean of its divisors is an integer number (30151352).

Almost surely, 2505130460 is an apocalyptic number.

It is an amenable number.

505130460 is an abundant number, since it is smaller than the sum of its proper divisors (942134436).

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

505130460 is a wasteful number, since it uses less digits than its factorization.

505130460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195842 (or 195840 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 505130460 is about 22475.1075637026. The cubic root of 505130460 is about 796.4059926512.

Adding to 505130460 its reverse (64031505), we get a palindrome (569161965).

It can be divided in two parts, 5051 and 30460, that added together give a triangular number (35511 = T266).

The spelling of 505130460 in words is "five hundred five million, one hundred thirty thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1290 2580 195787 391574 587361 783148 978935 1174722 1957870 2349444 2936805 3915740 5873610 8418841 11747220 16837682 25256523 33675364 42094205 50513046 84188410 101026092 126282615 168376820 252565230 505130460