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20102102012000 = 255319925253897
BaseRepresentation
bin1001001001000011000101…
…01001100101000001100000
32122011202001001102010021202
410210201202221211001200
510113323101103341000
6110430440030340332
74143220553554151
oct444414251450140
978152031363252
1020102102012000
116450287585938
122307b0935a6a8
13b2a80a437058
144d6d3852d928
1524cd7d8d3dd5
hex124862a65060

20102102012000 has 96 divisors (see below), whose sum is σ = 49639061908800. Its totient is φ = 8000434252800.

The previous prime is 20102102011991. The next prime is 20102102012009. The reversal of 20102102012000 is 21020120102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20102102011991) and next prime (20102102012009).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102102012009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11830949 + ... + 13422948.

It is an arithmetic number, because the mean of its divisors is an integer number (517073561550).

Almost surely, 220102102012000 is an apocalyptic number.

20102102012000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102102012000 is an abundant number, since it is smaller than the sum of its proper divisors (29536959896800).

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

20102102012000 is a wasteful number, since it uses less digits than its factorization.

20102102012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25254121 (or 25254103 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20102102012000 its reverse (21020120102), we get a palindrome (20123122132102).

The spelling of 20102102012000 in words is "twenty trillion, one hundred two billion, one hundred two million, twelve thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 199 200 250 398 400 500 796 800 995 1000 1592 1990 2000 3184 3980 4000 4975 6368 7960 9950 15920 19900 24875 31840 39800 49750 79600 99500 159200 199000 398000 796000 25253897 50507794 101015588 126269485 202031176 252538970 404062352 505077940 631347425 808124704 1010155880 1262694850 2020311760 2525389700 3156737125 4040623520 5025525503 5050779400 6313474250 10051051006 10101558800 12626948500 20102102012 20203117600 25127627515 25253897000 40204204024 50255255030 50507794000 80408408048 100510510060 101015588000 125638137575 160816816096 201021020120 251276275150 402042040240 502552550300 628190687875 804084080480 1005105100600 1256381375750 2010210201200 2512762751500 4020420402400 5025525503000 10051051006000 20102102012000