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3028787680 = 25518929923
BaseRepresentation
bin1011010010000111…
…1010000111100000
321211002012100121111
42310201322013200
522200332201210
61220313233104
7135025161532
oct26441720740
97732170544
103028787680
111314743016
12706402794
13393653779
1420a37b852
1512ad7d88a
hexb487a1e0

3028787680 has 24 divisors (see below), whose sum is σ = 7155511272. Its totient is φ = 1211515008.

The previous prime is 3028787653. The next prime is 3028787693. The reversal of 3028787680 is 867878203.

It is a congruent number.

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, 9464802 + ... + 9465121.

It is an arithmetic number, because the mean of its divisors is an integer number (298146303).

Almost surely, 23028787680 is an apocalyptic number.

It is an amenable number.

3028787680 is an abundant number, since it is smaller than the sum of its proper divisors (4126723592).

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

3028787680 is a wasteful number, since it uses less digits than its factorization.

3028787680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18929938 (or 18929930 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 3028787680 is about 55034.4226825357. The cubic root of 3028787680 is about 1446.8481168154.

The spelling of 3028787680 in words is "three billion, twenty-eight million, seven hundred eighty-seven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 18929923 37859846 75719692 94649615 151439384 189299230 302878768 378598460 605757536 757196920 1514393840 3028787680