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12819200000 = 211552003
BaseRepresentation
bin10111111000001010…
…10111100000000000
31020002101120211111012
423330011113200000
5202223203400000
65520011540052
7632446254635
oct137405274000
936071524435
1012819200000
115489116772
12259915a628
131293aaa959
1489874418c
1550063b735
hex2fc157800

12819200000 has 144 divisors (see below), whose sum is σ = 32054120280. Its totient is φ = 5125120000.

The previous prime is 12819199973. The next prime is 12819200057. The reversal of 12819200000 is 291821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6398999 + ... + 6401001.

Almost surely, 212819200000 is an apocalyptic number.

12819200000 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 12819200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16027060140).

12819200000 is an abundant number, since it is smaller than the sum of its proper divisors (19234920280).

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

12819200000 is an frugal number, since it uses more digits than its factorization.

12819200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050 (or 2010 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 12819200000 its reverse (291821), we get a palindrome (12819491821).

The spelling of 12819200000 in words is "twelve billion, eight hundred nineteen million, two hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 256 320 400 500 512 625 640 800 1000 1024 1250 1280 1600 2000 2003 2048 2500 2560 3125 3200 4000 4006 5000 5120 6250 6400 8000 8012 10000 10015 10240 12500 12800 16000 16024 20000 20030 25000 25600 32000 32048 40000 40060 50000 50075 51200 64000 64096 80000 80120 100000 100150 128000 128192 160000 160240 200000 200300 250375 256000 256384 320000 320480 400000 400600 500750 512768 640000 640960 800000 801200 1001500 1025536 1251875 1280000 1281920 1600000 1602400 2003000 2051072 2503750 2563840 3200000 3204800 4006000 4102144 5007500 5127680 6259375 6400000 6409600 8012000 10015000 10255360 12518750 12819200 16024000 20030000 20510720 25037500 25638400 32048000 40060000 50075000 51276800 64096000 80120000 100150000 102553600 128192000 160240000 200300000 256384000 320480000 400600000 512768000 640960000 801200000 1281920000 1602400000 2563840000 3204800000 6409600000 12819200000