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120101110420 = 2256005055521
BaseRepresentation
bin110111111011010010…
…1011000001010010100
3102111000001102112220211
41233312211120022110
53431431341013140
6131101303335204
711451134410654
oct1576645301224
9374001375824
10120101110420
1146a30a44955
121b339751504
13b430129415
145b54946364
1531cdcc92ea
hex1bf6958294

120101110420 has 12 divisors (see below), whose sum is σ = 252212331924. Its totient is φ = 48040444160.

The previous prime is 120101110391. The next prime is 120101110421. The reversal of 120101110420 is 24011101021.

It can be written as a sum of positive squares in 2 ways, for example, as 43162555536 + 76938554884 = 207756^2 + 277378^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120101110420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120101110421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3002527741 + ... + 3002527780.

It is an arithmetic number, because the mean of its divisors is an integer number (21017694327).

Almost surely, 2120101110420 is an apocalyptic number.

120101110420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120101110420 is an abundant number, since it is smaller than the sum of its proper divisors (132111221504).

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

120101110420 is a wasteful number, since it uses less digits than its factorization.

120101110420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005055530 (or 6005055528 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120101110420 its reverse (24011101021), we get a palindrome (144112211441).

The spelling of 120101110420 in words is "one hundred twenty billion, one hundred one million, one hundred ten thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 6005055521 12010111042 24020222084 30025277605 60050555210 120101110420