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120144441 = 361656527
BaseRepresentation
bin1110010100101…
…00001000111001
322101001222012010
413022110020321
5221224110231
615531040133
72656132224
oct712241071
9271058163
10120144441
116190032a
12342a0049
131bb778b1
1411d565bb
15a833546
hex7294239

120144441 has 8 divisors (see below), whose sum is σ = 162818944. Its totient is φ = 78783120.

The previous prime is 120144421. The next prime is 120144443. The reversal of 120144441 is 144441021.

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

It is not a de Polignac number, because 120144441 - 26 = 120144377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120144443) 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, 328081 + ... + 328446.

It is an arithmetic number, because the mean of its divisors is an integer number (20352368).

Almost surely, 2120144441 is an apocalyptic number.

It is an amenable number.

120144441 is a deficient number, since it is larger than the sum of its proper divisors (42674503).

120144441 is an equidigital number, since it uses as much as digits as its factorization.

120144441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656591.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 120144441 is about 10961.0419668935. The cubic root of 120144441 is about 493.4402367041.

Adding to 120144441 its reverse (144441021), we get a palindrome (264585462).

The spelling of 120144441 in words is "one hundred twenty million, one hundred forty-four thousand, four hundred forty-one".

Divisors: 1 3 61 183 656527 1969581 40048147 120144441