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5185588688 = 247533132791
BaseRepresentation
bin1001101010001010…
…11100110111010000
3111101101121012101022
410311011130313100
541110002314223
62214321055012
7242334530240
oct46505346720
914341535338
105185588688
112221147595
121008787468
1364843b497
143729b1b20
152053b5ac8
hex13515cdd0

5185588688 has 80 divisors (see below), whose sum is σ = 11740605696. Its totient is φ = 2172718080.

The previous prime is 5185588679. The next prime is 5185588691. The reversal of 5185588688 is 8868855815.

It is a super-3 number, since 3×51855886883 (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 5185588688.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1856573 + ... + 1859363.

Almost surely, 25185588688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5185588688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5870302848).

5185588688 is an abundant number, since it is smaller than the sum of its proper divisors (6555017008).

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

5185588688 is a wasteful number, since it uses less digits than its factorization.

5185588688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172 (or 3166 counting only the distinct ones).

The product of its digits is 24576000, while the sum is 62.

The square root of 5185588688 is about 72011.0317104261. The cubic root of 5185588688 is about 1730.8762629617.

The spelling of 5185588688 in words is "five billion, one hundred eighty-five million, five hundred eighty-eight thousand, six hundred eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 53 56 106 112 212 313 371 424 626 742 848 1252 1484 2191 2504 2791 2968 4382 5008 5582 5936 8764 11164 16589 17528 19537 22328 33178 35056 39074 44656 66356 78148 116123 132712 147923 156296 232246 265424 295846 312592 464492 591692 873583 928984 1035461 1183384 1747166 1857968 2070922 2366768 3494332 4141844 6115081 6988664 8283688 12230162 13977328 16567376 24460324 46299899 48920648 92599798 97841296 185199596 324099293 370399192 648198586 740798384 1296397172 2592794344 5185588688