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240252142 = 2139240467
BaseRepresentation
bin11100101000111…
…11010011101110
3121202002001222111
432110133103232
5443001032032
635501234234
75645052364
oct1624372356
9552061874
10240252142
11113685a99
126856297a
133aa0b840
1423c9d634
151615ac47
hexe51f4ee

240252142 has 8 divisors (see below), whose sum is σ = 388099656. Its totient is φ = 110885592.

The previous prime is 240252119. The next prime is 240252163. The reversal of 240252142 is 241252042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 4620208 + ... + 4620259.

It is an arithmetic number, because the mean of its divisors is an integer number (48512457).

Almost surely, 2240252142 is an apocalyptic number.

240252142 is a deficient number, since it is larger than the sum of its proper divisors (147847514).

240252142 is a wasteful number, since it uses less digits than its factorization.

240252142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9240482.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 240252142 is about 15500.0690966202. The cubic root of 240252142 is about 621.6640538607.

The spelling of 240252142 in words is "two hundred forty million, two hundred fifty-two thousand, one hundred forty-two".

Divisors: 1 2 13 26 9240467 18480934 120126071 240252142