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3087220 = 225163947
BaseRepresentation
bin1011110001101101110100
312210211212111
423301231310
51242242340
6150100404
735145433
oct13615564
95724774
103087220
111819524
12104a704
13841276
145a511a
1540eaea
hex2f1b74

3087220 has 24 divisors (see below), whose sum is σ = 6529824. Its totient is φ = 1226016.

The previous prime is 3087211. The next prime is 3087223. The reversal of 3087220 is 227803.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3087191 and 3087200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3087223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2787 + ... + 3733.

It is an arithmetic number, because the mean of its divisors is an integer number (272076).

Almost surely, 23087220 is an apocalyptic number.

It is an amenable number.

3087220 is an abundant number, since it is smaller than the sum of its proper divisors (3442604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3087220 is a wasteful number, since it uses less digits than its factorization.

3087220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 3087220 is about 1757.0486618190. The cubic root of 3087220 is about 145.6093264766.

The spelling of 3087220 in words is "three million, eighty-seven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 163 326 652 815 947 1630 1894 3260 3788 4735 9470 18940 154361 308722 617444 771805 1543610 3087220