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2688130239 = 35211719853
BaseRepresentation
bin1010000000111001…
…1001110010111111
320221100012011110020
42200032121302333
521001130131424
61122423543223
7123420505254
oct24016316277
96840164406
102688130239
11115a41a043
126302bab13
1333abbbb12
141b702342b
1510aedd079
hexa0399cbf

2688130239 has 8 divisors (see below), whose sum is σ = 3591055152. Its totient is φ = 1788646080.

The previous prime is 2688130217. The next prime is 2688130243. The reversal of 2688130239 is 9320318862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2688130239 - 27 = 2688130111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2688130239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2688130139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 858364 + ... + 861489.

It is an arithmetic number, because the mean of its divisors is an integer number (448881894).

Almost surely, 22688130239 is an apocalyptic number.

2688130239 is a deficient number, since it is larger than the sum of its proper divisors (902924913).

2688130239 is a wasteful number, since it uses less digits than its factorization.

2688130239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720377.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 2688130239 is about 51847.1815916738. The cubic root of 2688130239 is about 1390.4331136551.

The spelling of 2688130239 in words is "two billion, six hundred eighty-eight million, one hundred thirty thousand, two hundred thirty-nine".

Divisors: 1 3 521 1563 1719853 5159559 896043413 2688130239