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120243112 = 23111519049
BaseRepresentation
bin1110010101011…
…00001110101000
322101020222112121
413022230032220
5221240234422
615533121024
72660023003
oct712541650
9271228477
10120243112
1161968480
1234329174
131bbb0792
1411d8053a
15a8528c7
hex72ac3a8

120243112 has 32 divisors (see below), whose sum is σ = 247608000. Its totient is φ = 54288000.

The previous prime is 120243107. The next prime is 120243113. The reversal of 120243112 is 211342021.

It is not an unprimeable number, because it can be changed into a prime (120243113) 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 7 ways as a sum of consecutive naturals, for example, 8764 + ... + 17812.

It is an arithmetic number, because the mean of its divisors is an integer number (7737750).

Almost surely, 2120243112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120243112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123804000).

120243112 is an abundant number, since it is smaller than the sum of its proper divisors (127364888).

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

120243112 is a wasteful number, since it uses less digits than its factorization.

120243112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9217 (or 9213 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 120243112 is about 10965.5420294667. The cubic root of 120243112 is about 493.5752822614.

Adding to 120243112 its reverse (211342021), we get a palindrome (331585133).

The spelling of 120243112 in words is "one hundred twenty million, two hundred forty-three thousand, one hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 151 302 604 1208 1661 3322 6644 9049 13288 18098 36196 72392 99539 199078 398156 796312 1366399 2732798 5465596 10931192 15030389 30060778 60121556 120243112