Base | Representation |
---|---|
bin | 110111111100001001… |
… | …1101010011100000000 |
3 | 102111002001211100221111 |
4 | 1233320103222130000 |
5 | 3432011241133440 |
6 | 131104215133104 |
7 | 11451635221504 |
oct | 1577023523400 |
9 | 374061740844 |
10 | 120130021120 |
11 | 46a462a099a |
12 | 1b347374194 |
13 | b43610c645 |
14 | 5b58710304 |
15 | 31d15da4ea |
hex | 1bf84ea700 |
120130021120 has 72 divisors (see below), whose sum is σ = 287808363360. Its totient is φ = 48042086400.
The previous prime is 120130021111. The next prime is 120130021147. The reversal of 120130021120 is 21120031021.
It is a self number, because there is not a number n which added to its sum of digits gives 120130021120.
It is a congruent number.
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, 12128170 + ... + 12138070.
It is an arithmetic number, because the mean of its divisors is an integer number (3997338380).
Almost surely, 2120130021120 is an apocalyptic number.
120130021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
120130021120 is an abundant number, since it is smaller than the sum of its proper divisors (167678342240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120130021120 is an frugal number, since it uses more digits than its factorization.
120130021120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19401 (or 19387 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 13.
Adding to 120130021120 its reverse (21120031021), we get a palindrome (141250052141).
Subtracting from 120130021120 its reverse (21120031021), we obtain a palindrome (99009990099).
The spelling of 120130021120 in words is "one hundred twenty billion, one hundred thirty million, twenty-one thousand, one hundred twenty".
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