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2028888688 = 24126805543
BaseRepresentation
bin111100011101110…
…0110001001110000
312020101201020001111
41320323212021300
513123343414223
6533154043104
7101164161241
oct17073461160
95211636044
102028888688
11951289112
12487579494
13264450568
14153658cc8
15bd1bc30d
hex78ee6270

2028888688 has 10 divisors (see below), whose sum is σ = 3930971864. Its totient is φ = 1014444336.

The previous prime is 2028888683. The next prime is 2028888703. The reversal of 2028888688 is 8868888202.

It is a super-2 number, since 2×20288886882 = 8232778616588722688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028888683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63402756 + ... + 63402787.

Almost surely, 22028888688 is an apocalyptic number.

It is an amenable number.

2028888688 is a deficient number, since it is larger than the sum of its proper divisors (1902083176).

2028888688 is a wasteful number, since it uses less digits than its factorization.

2028888688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126805551 (or 126805545 counting only the distinct ones).

The product of its (nonzero) digits is 6291456, while the sum is 58.

The square root of 2028888688 is about 45043.1869209984. The cubic root of 2028888688 is about 1265.9583187546.

The spelling of 2028888688 in words is "two billion, twenty-eight million, eight hundred eighty-eight thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 16 126805543 253611086 507222172 1014444344 2028888688