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120232947 = 340077649
BaseRepresentation
bin1110010101010…
…01101111110011
322101020110121010
413022221233303
5221234423242
615533002003
72656651242
oct712515763
9271213533
10120232947
116196087a
1234323303
131bba8c73
1411d7a959
15a84e89c
hex72a9bf3

120232947 has 4 divisors (see below), whose sum is σ = 160310600. Its totient is φ = 80155296.

The previous prime is 120232919. The next prime is 120232963. The reversal of 120232947 is 749232021.

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

It is not a de Polignac number, because 120232947 - 28 = 120232691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120232967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20038822 + ... + 20038827.

It is an arithmetic number, because the mean of its divisors is an integer number (40077650).

Almost surely, 2120232947 is an apocalyptic number.

120232947 is a deficient number, since it is larger than the sum of its proper divisors (40077653).

120232947 is an equidigital number, since it uses as much as digits as its factorization.

120232947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40077652.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 120232947 is about 10965.0785222907. The cubic root of 120232947 is about 493.5613734005.

Adding to 120232947 its reverse (749232021), we get a palindrome (869464968).

The spelling of 120232947 in words is "one hundred twenty million, two hundred thirty-two thousand, nine hundred forty-seven".

Divisors: 1 3 40077649 120232947