Base | Representation |
---|---|
bin | 1000010100010101001110 |
3 | 11002202222200 |
4 | 20110111032 |
5 | 1024233210 |
6 | 114422330 |
7 | 24350640 |
oct | 10242516 |
9 | 4082880 |
10 | 2180430 |
11 | 125a20a |
12 | 8919a6 |
13 | 5b45c5 |
14 | 40a890 |
15 | 2d10c0 |
hex | 21454e |
2180430 has 48 divisors (see below), whose sum is σ = 6480864. Its totient is φ = 498240.
The previous prime is 2180417. The next prime is 2180467. The reversal of 2180430 is 340812.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1101 + ... + 2360.
It is an arithmetic number, because the mean of its divisors is an integer number (135018).
22180430 is an apocalyptic number.
2180430 is an abundant number, since it is smaller than the sum of its proper divisors (4300434).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2180430 is a wasteful number, since it uses less digits than its factorization.
2180430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3481 (or 3478 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 2180430 is about 1476.6279152176. The cubic root of 2180430 is about 129.6723504344.
The spelling of 2180430 in words is "two million, one hundred eighty thousand, four hundred thirty".
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