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120342472 = 23107140587
BaseRepresentation
bin1110010110001…
…00011111001000
322101110000211121
413023010133020
5221301424342
615535205024
72660615455
oct713043710
9271400747
10120342472
1161a26098
1234376774
131bc16a83
1411da882c
15a872067
hex72c47c8

120342472 has 16 divisors (see below), whose sum is σ = 227752560. Its totient is φ = 59608464.

The previous prime is 120342457. The next prime is 120342479. The reversal of 120342472 is 274243021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (120342479) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 69438 + ... + 71149.

It is an arithmetic number, because the mean of its divisors is an integer number (14234535).

Almost surely, 2120342472 is an apocalyptic number.

It is an amenable number.

120342472 is a deficient number, since it is larger than the sum of its proper divisors (107410088).

120342472 is a wasteful number, since it uses less digits than its factorization.

120342472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140700 (or 140696 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 120342472 is about 10970.0716497204. The cubic root of 120342472 is about 493.7111961814.

Adding to 120342472 its reverse (274243021), we get a palindrome (394585493).

The spelling of 120342472 in words is "one hundred twenty million, three hundred forty-two thousand, four hundred seventy-two".

Divisors: 1 2 4 8 107 214 428 856 140587 281174 562348 1124696 15042809 30085618 60171236 120342472