Base | Representation |
---|---|
bin | 1110010101001… |
… | …10110111001010 |
3 | 22101012212101110 |
4 | 13022212313022 |
5 | 221234034010 |
6 | 15532431150 |
7 | 2656601631 |
oct | 712466712 |
9 | 271185343 |
10 | 120221130 |
11 | 61952a07 |
12 | 343184b6 |
13 | 1bba3783 |
14 | 11d76518 |
15 | a84b120 |
hex | 72a6dca |
120221130 has 32 divisors (see below), whose sum is σ = 290055168. Its totient is φ = 31889600.
The previous prime is 120221117. The next prime is 120221137. The reversal of 120221130 is 31122021.
It is not an unprimeable number, because it can be changed into a prime (120221137) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4761 + ... + 16220.
It is an arithmetic number, because the mean of its divisors is an integer number (9064224).
Almost surely, 2120221130 is an apocalyptic number.
120221130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
120221130 is an abundant number, since it is smaller than the sum of its proper divisors (169834038).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
120221130 is a wasteful number, since it uses less digits than its factorization.
120221130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21182.
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 120221130 is about 10964.5396620196. The cubic root of 120221130 is about 493.5452031078.
Adding to 120221130 its reverse (31122021), we get a palindrome (151343151).
The spelling of 120221130 in words is "one hundred twenty million, two hundred twenty-one thousand, one hundred thirty".
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