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2020000100000 = 255542147981
BaseRepresentation
bin11101011001010001011…
…000110110111010100000
321011002222021120012101112
4131121101120312322200
5231043430011200000
64143550352322452
7265640325356351
oct35312130667240
97132867505345
102020000100000
1170974a438a53
122875a5b43428
1311863cc7567c
146daa8b9dd28
1537828c68235
hex1d651636ea0

2020000100000 has 144 divisors (see below), whose sum is σ = 4982686759512. Its totient is φ = 806064000000.

The previous prime is 2020000099979. The next prime is 2020000100009. The reversal of 2020000100000 is 10000202.

It can be written as a sum of positive squares in 12 ways, for example, as 1799171534224 + 220828565776 = 1341332^2 + 469924^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is not an unprimeable number, because it can be changed into a prime (2020000100009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42076010 + ... + 42123990.

Almost surely, 22020000100000 is an apocalyptic number.

2020000100000 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 2020000100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2491343379756).

2020000100000 is an abundant number, since it is smaller than the sum of its proper divisors (2962686659512).

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

2020000100000 is an frugal number, since it uses more digits than its factorization.

2020000100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48437 (or 48409 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

Adding to 2020000100000 its reverse (10000202), we get a palindrome (2020010100202).

The spelling of 2020000100000 in words is "two trillion, twenty billion, one hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 421 500 625 800 842 1000 1250 1684 2000 2105 2500 3125 3368 4000 4210 5000 6250 6736 8420 10000 10525 12500 13472 16840 20000 21050 25000 33680 42100 47981 50000 52625 67360 84200 95962 100000 105250 168400 191924 210500 239905 263125 336800 383848 421000 479810 526250 767696 842000 959620 1052500 1199525 1315625 1535392 1684000 1919240 2105000 2399050 2631250 3838480 4210000 4798100 5262500 5997625 7676960 8420000 9596200 10525000 11995250 19192400 20200001 21050000 23990500 29988125 38384800 40400002 42100000 47981000 59976250 80800004 95962000 101000005 119952500 149940625 161600008 191924000 202000010 239905000 299881250 323200016 404000020 479810000 505000025 599762500 646400032 808000040 959620000 1010000050 1199525000 1616000080 2020000100 2399050000 2525000125 3232000160 4040000200 4798100000 5050000250 8080000400 10100000500 12625000625 16160000800 20200001000 25250001250 40400002000 50500002500 63125003125 80800004000 101000005000 126250006250 202000010000 252500012500 404000020000 505000025000 1010000050000 2020000100000