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120040242 = 2372858101
BaseRepresentation
bin1110010011110…
…10101100110010
322100212200020220
413021322230302
5221212241432
615524513510
72655216360
oct711725462
9270780226
10120040242
116183a013
123424b896
131bb3c33a
1411d2a630
15a81272c
hex727ab32

120040242 has 16 divisors (see below), whose sum is σ = 274377792. Its totient is φ = 34297200.

The previous prime is 120040241. The next prime is 120040259. The reversal of 120040242 is 242040021.

It is not an unprimeable number, because it can be changed into a prime (120040241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429009 + ... + 1429092.

It is an arithmetic number, because the mean of its divisors is an integer number (17148612).

Almost surely, 2120040242 is an apocalyptic number.

120040242 is an abundant number, since it is smaller than the sum of its proper divisors (154337550).

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

120040242 is a wasteful number, since it uses less digits than its factorization.

120040242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858113.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 120040242 is about 10956.2877837341. The cubic root of 120040242 is about 493.2975449852.

Adding to 120040242 its reverse (242040021), we get a palindrome (362080263).

The spelling of 120040242 in words is "one hundred twenty million, forty thousand, two hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 2858101 5716202 8574303 17148606 20006707 40013414 60020121 120040242