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120312030112 = 255371998663
BaseRepresentation
bin111000000001100100…
…1111110001110100000
3102111112202022101100021
41300003021332032200
53432344334430422
6131134240203224
711456305245121
oct1600311761640
9374482271307
10120312030112
114702a005a4a
121b398309514
13b464a37a81
145b7496c048
1531e258ddc7
hex1c0327e3a0

120312030112 has 48 divisors (see below), whose sum is σ = 241671548160. Its totient is φ = 58938310912.

The previous prime is 120312030101. The next prime is 120312030149. The reversal of 120312030112 is 211030213021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170093 + ... + 1268755.

It is an arithmetic number, because the mean of its divisors is an integer number (5034823920).

Almost surely, 2120312030112 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 120312030112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120835774080).

120312030112 is an abundant number, since it is smaller than the sum of its proper divisors (121359518048).

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

120312030112 is an equidigital number, since it uses as much as digits as its factorization.

120312030112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99445 (or 99437 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 120312030112 its reverse (211030213021), we get a palindrome (331342243133).

The spelling of 120312030112 in words is "one hundred twenty billion, three hundred twelve million, thirty thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 53 106 212 424 719 848 1438 1696 2876 5752 11504 23008 38107 76214 98663 152428 197326 304856 394652 609712 789304 1219424 1578608 3157216 5229139 10458278 20916556 41833112 70938697 83666224 141877394 167332448 283754788 567509576 1135019152 2270038304 3759750941 7519501882 15039003764 30078007528 60156015056 120312030112