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120147842 = 21271992377
BaseRepresentation
bin1110010100101…
…00111110000010
322101002010212002
413022110332002
5221224212332
615531104002
72656145153
oct712247602
9271063762
10120147842
1161902941
12342a2002
131bb792c9
1411d5792a
15a834562
hex7294f82

120147842 has 16 divisors (see below), whose sum is σ = 182630400. Its totient is φ = 59276448.

The previous prime is 120147779. The next prime is 120147851. The reversal of 120147842 is 248741021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49358 + ... + 51734.

It is an arithmetic number, because the mean of its divisors is an integer number (11414400).

Almost surely, 2120147842 is an apocalyptic number.

120147842 is a deficient number, since it is larger than the sum of its proper divisors (62482558).

120147842 is a wasteful number, since it uses less digits than its factorization.

120147842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 120147842 is about 10961.1971061559. The cubic root of 120147842 is about 493.4448926954. Note that the first 3 decimals are identical.

Adding to 120147842 its reverse (248741021), we get a palindrome (368888863).

The spelling of 120147842 in words is "one hundred twenty million, one hundred forty-seven thousand, eight hundred forty-two".

Divisors: 1 2 127 199 254 398 2377 4754 25273 50546 301879 473023 603758 946046 60073921 120147842