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19380200 = 23527109127
BaseRepresentation
bin100100111101…
…1011111101000
31100110121122012
41021323133220
514430131300
61531215052
7323505020
oct111733750
940417565
1019380200
11aa376a4
1265a7488
134027298
142806a80
151a7c435
hex127b7e8

19380200 has 96 divisors (see below), whose sum is σ = 52377600. Its totient is φ = 6531840.

The previous prime is 19380199. The next prime is 19380217. The reversal of 19380200 is 208391.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152537 + ... + 152663.

It is an arithmetic number, because the mean of its divisors is an integer number (545600).

Almost surely, 219380200 is an apocalyptic number.

19380200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19380200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26188800).

19380200 is an abundant number, since it is smaller than the sum of its proper divisors (32997400).

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

19380200 is a wasteful number, since it uses less digits than its factorization.

19380200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 19380200 is about 4402.2948560949. The cubic root of 19380200 is about 268.6082937819.

Adding to 19380200 its reverse (208391), we get a palindrome (19588591).

The spelling of 19380200 in words is "nineteen million, three hundred eighty thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 109 127 140 175 200 218 254 280 350 436 508 545 635 700 763 872 889 1016 1090 1270 1400 1526 1778 2180 2540 2725 3052 3175 3556 3815 4360 4445 5080 5450 6104 6350 7112 7630 8890 10900 12700 13843 15260 17780 19075 21800 22225 25400 27686 30520 35560 38150 44450 55372 69215 76300 88900 96901 110744 138430 152600 177800 193802 276860 346075 387604 484505 553720 692150 775208 969010 1384300 1938020 2422525 2768600 3876040 4845050 9690100 19380200