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485997018 = 23132479287
BaseRepresentation
bin11100111101111…
…011100111011010
31020212111012120120
4130331323213122
51443403401033
6120120334110
715020622633
oct3475734732
91225435516
10485997018
1122a372831
12116914336
13798c1500
144878c88a
152c9ee1b3
hex1cf7b9da

485997018 has 24 divisors (see below), whose sum is σ = 1052516448. Its totient is φ = 149537232.

The previous prime is 485997011. The next prime is 485997041. The reversal of 485997018 is 810799584.

It is not an unprimeable number, because it can be changed into a prime (485997011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238630 + ... + 240657.

It is an arithmetic number, because the mean of its divisors is an integer number (43854852).

Almost surely, 2485997018 is an apocalyptic number.

485997018 is an abundant number, since it is smaller than the sum of its proper divisors (566519430).

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

485997018 is a wasteful number, since it uses less digits than its factorization.

485997018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479318 (or 479305 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 485997018 is about 22045.3400518114. The cubic root of 485997018 is about 786.2208102242.

The spelling of 485997018 in words is "four hundred eighty-five million, nine hundred ninety-seven thousand, eighteen".

Divisors: 1 2 3 6 13 26 39 78 169 338 507 1014 479287 958574 1437861 2875722 6230731 12461462 18692193 37384386 80999503 161999006 242998509 485997018