Base | Representation |
---|---|
bin | 1110011100000… |
… | …10010111100110 |
3 | 22102220112201110 |
4 | 13032002113212 |
5 | 222001321410 |
6 | 20004005450 |
7 | 3000335130 |
oct | 716022746 |
9 | 272815643 |
10 | 121120230 |
11 | 62407470 |
12 | 34690886 |
13 | 1c129a9a |
14 | 1212c050 |
15 | a977720 |
hex | 73825e6 |
121120230 has 64 divisors (see below), whose sum is σ = 362423808. Its totient is φ = 25167360.
The previous prime is 121120229. The next prime is 121120253. The reversal of 121120230 is 32021121.
It is a super-3 number, since 3×1211202303 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Curzon number.
It is a nialpdrome in base 15.
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, 23907 + ... + 28526.
It is an arithmetic number, because the mean of its divisors is an integer number (5662872).
Almost surely, 2121120230 is an apocalyptic number.
121120230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
121120230 is an abundant number, since it is smaller than the sum of its proper divisors (241303578).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121120230 is a wasteful number, since it uses less digits than its factorization.
121120230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52461.
The product of its (nonzero) digits is 24, while the sum is 12.
The square root of 121120230 is about 11005.4636431184. The cubic root of 121120230 is about 494.7725105069.
Adding to 121120230 its reverse (32021121), we get a palindrome (153141351).
The spelling of 121120230 in words is "one hundred twenty-one million, one hundred twenty thousand, two hundred thirty".
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