Base | Representation |
---|---|
bin | 1000010100010001011110 |
3 | 11002202122210 |
4 | 20110101132 |
5 | 1024231230 |
6 | 114421250 |
7 | 24350145 |
oct | 10242136 |
9 | 4082583 |
10 | 2180190 |
11 | 125a011 |
12 | 891826 |
13 | 5b446c |
14 | 40a75c |
15 | 2d0eb0 |
hex | 21445e |
2180190 has 16 divisors (see below), whose sum is σ = 5232528. Its totient is φ = 581376.
The previous prime is 2180183. The next prime is 2180219. The reversal of 2180190 is 910812.
It is a super-2 number, since 2×21801902 = 9506456872200, which contains 22 as substring.
It is an Ulam number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36307 + ... + 36366.
It is an arithmetic number, because the mean of its divisors is an integer number (327033).
22180190 is an apocalyptic number.
2180190 is an abundant number, since it is smaller than the sum of its proper divisors (3052338).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2180190 is a wasteful number, since it uses less digits than its factorization.
2180190 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 72683.
The product of its (nonzero) digits is 144, while the sum is 21.
The square root of 2180190 is about 1476.5466467403. The cubic root of 2180190 is about 129.6675925799.
The spelling of 2180190 in words is "two million, one hundred eighty thousand, one hundred ninety".
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