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2189468 = 223117657
BaseRepresentation
bin1000010110100010011100
311010020101102
420112202130
51030030333
6114532232
724416201
oct10264234
94106342
102189468
111265a86
12897078
135b8758
1440dca8
152d3ae8
hex21689c

2189468 has 12 divisors (see below), whose sum is σ = 3955392. Its totient is φ = 1059360.

The previous prime is 2189461. The next prime is 2189477. The reversal of 2189468 is 8649812.

It is a super-3 number, since 3×21894683 = 31487418851151333696, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8705 + ... + 8952.

It is an arithmetic number, because the mean of its divisors is an integer number (329616).

22189468 is an apocalyptic number.

It is an amenable number.

2189468 is a deficient number, since it is larger than the sum of its proper divisors (1765924).

2189468 is a wasteful number, since it uses less digits than its factorization.

2189468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17692 (or 17690 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 2189468 is about 1479.6851016348. The cubic root of 2189468 is about 129.8512697480.

The spelling of 2189468 in words is "two million, one hundred eighty-nine thousand, four hundred sixty-eight".

Divisors: 1 2 4 31 62 124 17657 35314 70628 547367 1094734 2189468