Base | Representation |
---|---|
bin | 1111110000110… |
… | …00110011100101 |
3 | 100012210120201211 |
4 | 13320120303211 |
5 | 232322102211 |
6 | 21041551421 |
7 | 3163604260 |
oct | 770306345 |
9 | 305716654 |
10 | 132222181 |
11 | 686aa533 |
12 | 38345571 |
13 | 215160a0 |
14 | 137bbcd7 |
15 | b91be21 |
hex | 7e18ce5 |
132222181 has 8 divisors (see below), whose sum is σ = 162735104. Its totient is φ = 104615280.
The previous prime is 132222173. The next prime is 132222191. The reversal of 132222181 is 181222231.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 132222181 - 23 = 132222173 is a prime.
It is a super-2 number, since 2×1322221812 = 34965410296793522, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (132222191) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726405 + ... + 726586.
It is an arithmetic number, because the mean of its divisors is an integer number (20341888).
Almost surely, 2132222181 is an apocalyptic number.
It is an amenable number.
132222181 is a deficient number, since it is larger than the sum of its proper divisors (30512923).
132222181 is a wasteful number, since it uses less digits than its factorization.
132222181 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1453011.
The product of its digits is 384, while the sum is 22.
The square root of 132222181 is about 11498.7904146480. The cubic root of 132222181 is about 509.4498501721.
Subtracting 132222181 from its reverse (181222231), we obtain a triangular number (49000050 = T9899).
The spelling of 132222181 in words is "one hundred thirty-two million, two hundred twenty-two thousand, one hundred eighty-one".
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