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120230243 = 717175749
BaseRepresentation
bin1110010101010…
…01000101100011
322101020022212222
413022221011203
5221234331433
615532541255
72656640330
oct712510543
9271208788
10120230243
1161959841
123432182b
131bba7973
1411d79987
15a84db98
hex72a9163

120230243 has 4 divisors (see below), whose sum is σ = 137406000. Its totient is φ = 103054488.

The previous prime is 120230237. The next prime is 120230281. The reversal of 120230243 is 342032021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120230243 - 28 = 120229987 is a prime.

It is a super-2 number, since 2×1202302432 = 28910622663678098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120230203) 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, 8587868 + ... + 8587881.

It is an arithmetic number, because the mean of its divisors is an integer number (34351500).

Almost surely, 2120230243 is an apocalyptic number.

120230243 is a deficient number, since it is larger than the sum of its proper divisors (17175757).

120230243 is an equidigital number, since it uses as much as digits as its factorization.

120230243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17175756.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 120230243 is about 10964.9552210668. The cubic root of 120230243 is about 493.5576733610.

Adding to 120230243 its reverse (342032021), we get a palindrome (462262264).

The spelling of 120230243 in words is "one hundred twenty million, two hundred thirty thousand, two hundred forty-three".

Divisors: 1 7 17175749 120230243