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518280196 = 227313831559
BaseRepresentation
bin11110111001000…
…101010000000100
31100010020100202211
4132321011100010
52030134431241
6123232313204
715562210660
oct3671052004
91303210684
10518280196
11246612645
121256a2804
13834b5795
144cb938a0
1530779781
hex1ee45404

518280196 has 48 divisors (see below), whose sum is σ = 1073479680. Its totient is φ = 214256160.

The previous prime is 518280193. The next prime is 518280209. The reversal of 518280196 is 691082815.

It is a super-2 number, since 2×5182801962 = 537228723131596832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (518280193) 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, 331665 + ... + 333223.

It is an arithmetic number, because the mean of its divisors is an integer number (22364160).

Almost surely, 2518280196 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 518280196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (536739840).

518280196 is an abundant number, since it is smaller than the sum of its proper divisors (555199484).

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

518280196 is a wasteful number, since it uses less digits than its factorization.

518280196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 518280196 is about 22765.7680740185. The cubic root of 518280196 is about 803.2576520398.

The spelling of 518280196 in words is "five hundred eighteen million, two hundred eighty thousand, one hundred ninety-six".

Divisors: 1 2 4 7 14 28 31 62 124 217 383 434 766 868 1532 1559 2681 3118 5362 6236 10724 10913 11873 21826 23746 43652 47492 48329 83111 96658 166222 193316 332444 338303 597097 676606 1194194 1353212 2388388 4179679 8359358 16718716 18510007 37020014 74040028 129570049 259140098 518280196