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4220989284 = 223351749107
BaseRepresentation
bin1111101110010111…
…0010111101100100
3101220011112110202110
43323211302331210
532121033124114
61534502241020
7206412550131
oct37345627544
911804473673
104220989284
1118767027a6
12999726170
135236474c5
142c083b588
1519a878759
hexfb972f64

4220989284 has 12 divisors (see below), whose sum is σ = 9848975024. Its totient is φ = 1406996424.

The previous prime is 4220989261. The next prime is 4220989291. The reversal of 4220989284 is 4829890224.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175874542 + ... + 175874565.

Almost surely, 24220989284 is an apocalyptic number.

It is an amenable number.

4220989284 is an abundant number, since it is smaller than the sum of its proper divisors (5627985740).

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

4220989284 is a wasteful number, since it uses less digits than its factorization.

4220989284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351749114 (or 351749112 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 4220989284 is about 64969.1410132534. The cubic root of 4220989284 is about 1616.1118568008. Note that the first 3 decimals are identical.

The spelling of 4220989284 in words is "four billion, two hundred twenty million, nine hundred eighty-nine thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 351749107 703498214 1055247321 1406996428 2110494642 4220989284