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120031241212 = 22194733603371
BaseRepresentation
bin110111111001001101…
…0110110001111111100
3102110211011221211101101
41233302122312033330
53431310444204322
6131050330022444
711446325500441
oct1576232661774
9373734854341
10120031241212
11469a5563103
121b31a277a24
13b41b8052ac
145b495599c8
1531c7ac7327
hex1bf26b63fc

120031241212 has 24 divisors (see below), whose sum is σ = 225814659840. Its totient is φ = 55647180720.

The previous prime is 120031241189. The next prime is 120031241219. The reversal of 120031241212 is 212142130021.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 120031241212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120031241219) 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, 16798114 + ... + 16805257.

It is an arithmetic number, because the mean of its divisors is an integer number (9408944160).

Almost surely, 2120031241212 is an apocalyptic number.

It is an amenable number.

120031241212 is a deficient number, since it is larger than the sum of its proper divisors (105783418628).

120031241212 is a wasteful number, since it uses less digits than its factorization.

120031241212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33603441 (or 33603439 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 120031241212 its reverse (212142130021), we get a palindrome (332173371233).

The spelling of 120031241212 in words is "one hundred twenty billion, thirty-one million, two hundred forty-one thousand, two hundred twelve".

Divisors: 1 2 4 19 38 47 76 94 188 893 1786 3572 33603371 67206742 134413484 638464049 1276928098 1579358437 2553856196 3158716874 6317433748 30007810303 60015620606 120031241212