Base | Representation |
---|---|
bin | 1110011101101… |
… | …10000100101101 |
3 | 22110022022020021 |
4 | 13032312010231 |
5 | 222030111023 |
6 | 20012322141 |
7 | 3002206435 |
oct | 716660455 |
9 | 273268207 |
10 | 121332013 |
11 | 625415a0 |
12 | 34773351 |
13 | 1c1a22ba |
14 | 121852c5 |
15 | a9ba35d |
hex | 73b612d |
121332013 has 12 divisors (see below), whose sum is σ = 133674912. Its totient is φ = 109214720.
The previous prime is 121332011. The next prime is 121332019. The reversal of 121332013 is 310233121.
It is not a de Polignac number, because 121332013 - 21 = 121332011 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121332011) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 471981 + ... + 472237.
It is an arithmetic number, because the mean of its divisors is an integer number (11139576).
Almost surely, 2121332013 is an apocalyptic number.
It is an amenable number.
121332013 is a deficient number, since it is larger than the sum of its proper divisors (12342899).
121332013 is an equidigital number, since it uses as much as digits as its factorization.
121332013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 692 (or 435 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 121332013 is about 11015.0811617527. The cubic root of 121332013 is about 495.0607183281.
Adding to 121332013 its reverse (310233121), we get a palindrome (431565134).
The spelling of 121332013 in words is "one hundred twenty-one million, three hundred thirty-two thousand, thirteen".
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