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2689038268 = 227297141439
BaseRepresentation
bin1010000001000111…
…0111011110111100
320221101220022000221
42200101313132330
521001343211033
61122455231124
7123431306500
oct24021673674
96841808027
102689038268
11115a98a284
126306784a4
1333b149207
141b71bc300
1510b11c12d
hexa04777bc

2689038268 has 36 divisors (see below), whose sum is σ = 5530586880. Its totient is φ = 1140556032.

The previous prime is 2689038203. The next prime is 2689038271. The reversal of 2689038268 is 8628309862.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51708 + ... + 89731.

Almost surely, 22689038268 is an apocalyptic number.

2689038268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2689038268 is an abundant number, since it is smaller than the sum of its proper divisors (2841548612).

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

2689038268 is a wasteful number, since it uses less digits than its factorization.

2689038268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141554 (or 141545 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 52.

The square root of 2689038268 is about 51855.9376349517. The cubic root of 2689038268 is about 1390.5896551101.

The spelling of 2689038268 in words is "two billion, six hundred eighty-nine million, thirty-eight thousand, two hundred sixty-eight".

Divisors: 1 2 4 7 14 28 49 97 98 194 196 388 679 1358 2716 4753 9506 19012 141439 282878 565756 990073 1980146 3960292 6930511 13719583 13861022 27439166 27722044 54878332 96037081 192074162 384148324 672259567 1344519134 2689038268