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20001231301300 = 22521971015290929
BaseRepresentation
bin1001000110000111001100…
…10010010110101010110100
32121211002200012101002111121
410203003212102112222310
510110200010203120200
6110312234441113324
74133020104635404
oct443034622265264
977732605332447
1020001231301300
116411524702a17
1222b0457a88844
13b211534175a2
144d20c99b8804
1524a428005e1a
hex1230e6496ab4

20001231301300 has 36 divisors (see below), whose sum is σ = 43622990098380. Its totient is φ = 7959880875520.

The previous prime is 20001231301253. The next prime is 20001231301321. The reversal of 20001231301300 is 310313210002.

It can be written as a sum of positive squares in 6 ways, for example, as 22512601764 + 19978718699536 = 150042^2 + 4469756^2 .

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, 507625765 + ... + 507665164.

It is an arithmetic number, because the mean of its divisors is an integer number (1211749724955).

Almost surely, 220001231301300 is an apocalyptic number.

20001231301300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001231301300 is an abundant number, since it is smaller than the sum of its proper divisors (23621758797080).

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

20001231301300 is a wasteful number, since it uses less digits than its factorization.

20001231301300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015291140 (or 1015291133 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20001231301300 its reverse (310313210002), we get a palindrome (20311544511302).

The spelling of 20001231301300 in words is "twenty trillion, one billion, two hundred thirty-one million, three hundred one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 197 394 788 985 1970 3940 4925 9850 19700 1015290929 2030581858 4061163716 5076454645 10152909290 20305818580 25382273225 50764546450 101529092900 200012313013 400024626026 800049252052 1000061565065 2000123130130 4000246260260 5000307825325 10000615650650 20001231301300