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240203140 = 22512010157
BaseRepresentation
bin11100101000100…
…11010110000100
3121201222120202121
432110103112010
5442443000030
635500215324
75644456462
oct1624232604
9551876677
10240203140
111136521a1
126853a544
133a9c2448
1423c89832
151614b47a
hexe513584

240203140 has 12 divisors (see below), whose sum is σ = 504426636. Its totient is φ = 96081248.

The previous prime is 240203077. The next prime is 240203209. The reversal of 240203140 is 41302042.

It can be written as a sum of positive squares in 2 ways, for example, as 158155776 + 82047364 = 12576^2 + 9058^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6005059 + ... + 6005098.

It is an arithmetic number, because the mean of its divisors is an integer number (42035553).

Almost surely, 2240203140 is an apocalyptic number.

240203140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240203140 is an abundant number, since it is smaller than the sum of its proper divisors (264223496).

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

240203140 is a wasteful number, since it uses less digits than its factorization.

240203140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12010166 (or 12010164 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 240203140 is about 15498.4883133808. The cubic root of 240203140 is about 621.6217859708.

Adding to 240203140 its reverse (41302042), we get a palindrome (281505182).

The spelling of 240203140 in words is "two hundred forty million, two hundred three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 12010157 24020314 48040628 60050785 120101570 240203140