Base | Representation |
---|---|
bin | 110111111111001010… |
… | …1101111101010110010 |
3 | 102111100010021022121100 |
4 | 1233332111233222302 |
5 | 3432213143331010 |
6 | 131122232305230 |
7 | 11454304410504 |
oct | 1577625575262 |
9 | 374303238540 |
10 | 120231230130 |
11 | 46a98438800 |
12 | 1b375242216 |
13 | b45108752b |
14 | 5b67d37d74 |
15 | 31da42d2c0 |
hex | 1bfe56fab2 |
120231230130 has 72 divisors (see below), whose sum is σ = 343603001196. Its totient is φ = 29146962240.
The previous prime is 120231230129. The next prime is 120231230179. The reversal of 120231230130 is 31032132021.
120231230130 is a `hidden beast` number, since 1 + 20 + 2 + 312 + 301 + 30 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 118307793681 + 1923436449 = 343959^2 + 43857^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5509369 + ... + 5531148.
Almost surely, 2120231230130 is an apocalyptic number.
120231230130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
120231230130 is an abundant number, since it is smaller than the sum of its proper divisors (223371771066).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120231230130 is a wasteful number, since it uses less digits than its factorization.
120231230130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11040552 (or 11040538 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 120231230130 its reverse (31032132021), we get a palindrome (151263362151).
The spelling of 120231230130 in words is "one hundred twenty billion, two hundred thirty-one million, two hundred thirty thousand, one hundred thirty".
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