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240230140 = 22512011507
BaseRepresentation
bin11100101000110…
…01111011111100
3121202000221210121
432110121323330
5442444331030
635500544324
75644631263
oct1624317374
9552027717
10240230140
11113670507
12685520a4
133aa01817
1423c955da
151615447a
hexe519efc

240230140 has 12 divisors (see below), whose sum is σ = 504483336. Its totient is φ = 96092048.

The previous prime is 240230131. The next prime is 240230143. The reversal of 240230140 is 41032042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240230143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6005734 + ... + 6005773.

It is an arithmetic number, because the mean of its divisors is an integer number (42040278).

Almost surely, 2240230140 is an apocalyptic number.

240230140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240230140 is an abundant number, since it is smaller than the sum of its proper divisors (264253196).

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

240230140 is a wasteful number, since it uses less digits than its factorization.

240230140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12011516 (or 12011514 counting only the distinct ones).

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

The square root of 240230140 is about 15499.3593415986. The cubic root of 240230140 is about 621.6450762011.

Adding to 240230140 its reverse (41032042), we get a palindrome (281262182).

The spelling of 240230140 in words is "two hundred forty million, two hundred thirty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 12011507 24023014 48046028 60057535 120115070 240230140