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120530000000 = 275717709
BaseRepresentation
bin111000001000000100…
…1011101100010000000
3102112002221110101211002
41300100021131202000
53433321140000000
6131212024111132
711464563044624
oct1602011354200
9375087411732
10120530000000
1147131051a53
121b4393054a8
13b49ac44437
145b958ab184
1532067978d5
hex1c1025d880

120530000000 has 256 divisors, whose sum is σ = 318251138400. Its totient is φ = 45312000000.

The previous prime is 120529999991. The next prime is 120530000011. The reversal of 120530000000 is 35021.

It can be written as a sum of positive squares in 16 ways, for example, as 117396687424 + 3133312576 = 342632^2 + 55976^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169999646 + ... + 170000354.

Almost surely, 2120530000000 is an apocalyptic number.

120530000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120530000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159125569200).

120530000000 is an abundant number, since it is smaller than the sum of its proper divisors (197721138400).

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

120530000000 is an frugal number, since it uses more digits than its factorization.

120530000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

Adding to 120530000000 its reverse (35021), we get a palindrome (120530035021).

The spelling of 120530000000 in words is "one hundred twenty billion, five hundred thirty million", and thus it is an aban number.