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120142518 = 2320023753
BaseRepresentation
bin1110010100100…
…11101010110110
322101001212112220
413022103222312
5221224030033
615531023210
72656123506
oct712235266
9271055486
10120142518
11618a9941
123429ab06
131bb76a62
1411d55a06
15a832bb3
hex7293ab6

120142518 has 8 divisors (see below), whose sum is σ = 240285048. Its totient is φ = 40047504.

The previous prime is 120142513. The next prime is 120142537. The reversal of 120142518 is 815241021.

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

120142518 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120142513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10011871 + ... + 10011882.

It is an arithmetic number, because the mean of its divisors is an integer number (30035631).

Almost surely, 2120142518 is an apocalyptic number.

120142518 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

120142518 is a wasteful number, since it uses less digits than its factorization.

120142518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20023758.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 120142518 is about 10960.9542467798. The cubic root of 120142518 is about 493.4376040657.

Adding to 120142518 its reverse (815241021), we get a palindrome (935383539).

The spelling of 120142518 in words is "one hundred twenty million, one hundred forty-two thousand, five hundred eighteen".

Divisors: 1 2 3 6 20023753 40047506 60071259 120142518