Base | Representation |
---|---|
bin | 1110010101001… |
… | …10110111000000 |
3 | 22101012212101002 |
4 | 13022212313000 |
5 | 221234033440 |
6 | 15532431132 |
7 | 2656601615 |
oct | 712466700 |
9 | 271185332 |
10 | 120221120 |
11 | 619529a8 |
12 | 343184a8 |
13 | 1bba3776 |
14 | 11d7650c |
15 | a84b115 |
hex | 72a6dc0 |
120221120 has 56 divisors (see below), whose sum is σ = 292967664. Its totient is φ = 46964736.
The previous prime is 120221117. The next prime is 120221137. The reversal of 120221120 is 21122021.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9392 + ... + 18128.
Almost surely, 2120221120 is an apocalyptic number.
120221120 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 120221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146483832).
120221120 is an abundant number, since it is smaller than the sum of its proper divisors (172746544).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120221120 is an equidigital number, since it uses as much as digits as its factorization.
120221120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8797 (or 8787 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 11.
The square root of 120221120 is about 10964.5392060041. The cubic root of 120221120 is about 493.5451894235.
Adding to 120221120 its reverse (21122021), we get a palindrome (141343141).
Subtracting from 120221120 its reverse (21122021), we obtain a palindrome (99099099).
It can be divided in two parts, 1202 and 21120, that added together give a palindrome (22322).
The spelling of 120221120 in words is "one hundred twenty million, two hundred twenty-one thousand, one hundred twenty".
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