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20000212000 = 255310914583
BaseRepresentation
bin10010101000000110…
…110000010000100000
31220121211221001001121
4102220012300100200
5311430023241000
613104333542024
71305423665656
oct225006602040
956554831047
1020000212000
11853366432a
123a62044914
131b69750292
14d7a33cdd6
157c0cadb1a
hex4a81b0420

20000212000 has 96 divisors (see below), whose sum is σ = 49196294784. Its totient is φ = 7991008000.

The previous prime is 20000211991. The next prime is 20000212031. The reversal of 20000212000 is 21200002.

It is a happy 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, 4361709 + ... + 4366291.

It is an arithmetic number, because the mean of its divisors is an integer number (512461404).

Almost surely, 220000212000 is an apocalyptic number.

20000212000 is a gapful number since it is divisible by the number (20) 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 20000212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24598147392).

20000212000 is an abundant number, since it is smaller than the sum of its proper divisors (29196082784).

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

20000212000 is a wasteful number, since it uses less digits than its factorization.

20000212000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5699 (or 5681 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 20000212000 its reverse (21200002), we get a palindrome (20021412002).

The spelling of 20000212000 in words is "twenty billion, two hundred twelve thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 1091 2000 2182 4000 4364 4583 5455 8728 9166 10910 17456 18332 21820 22915 27275 34912 36664 43640 45830 54550 73328 87280 91660 109100 114575 136375 146656 174560 183320 218200 229150 272750 366640 436400 458300 545500 572875 733280 872800 916600 1091000 1145750 1833200 2182000 2291500 3666400 4364000 4583000 5000053 9166000 10000106 18332000 20000212 25000265 40000424 50000530 80000848 100001060 125001325 160001696 200002120 250002650 400004240 500005300 625006625 800008480 1000010600 1250013250 2000021200 2500026500 4000042400 5000053000 10000106000 20000212000