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20121022300300 = 22521914937093109
BaseRepresentation
bin1001001001100110010100…
…11000110000000010001100
32122020112212122021100112021
410210303022120300002030
510114130323202102200
6110443245310015524
74144460455424425
oct444631230600214
978215778240467
1020121022300300
116458306597539
12230b7097a75a4
13b2c53421570c
144d7c1127864c
1524d5d997541a
hex124cca63008c

20121022300300 has 72 divisors (see below), whose sum is σ = 45991441515600. Its totient is φ = 7619700337920.

The previous prime is 20121022300273. The next prime is 20121022300303. The reversal of 20121022300300 is 300322012102.

It is not an unprimeable number, because it can be changed into a prime (20121022300303) 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, 709855 + ... + 6383254.

It is an arithmetic number, because the mean of its divisors is an integer number (638770021050).

Almost surely, 220121022300300 is an apocalyptic number.

20121022300300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20121022300300 is an abundant number, since it is smaller than the sum of its proper divisors (25870419215300).

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

20121022300300 is a wasteful number, since it uses less digits than its factorization.

20121022300300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7094635 (or 7094628 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20121022300300 its reverse (300322012102), we get a palindrome (20421344312402).

The spelling of 20121022300300 in words is "twenty trillion, one hundred twenty-one billion, twenty-two million, three hundred thousand, three hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 95 100 190 380 475 950 1493 1900 2986 5972 7465 14930 28367 29860 37325 56734 74650 113468 141835 149300 283670 567340 709175 1418350 2836700 7093109 14186218 28372436 35465545 70931090 134769071 141862180 177327725 269538142 354655450 539076284 673845355 709310900 1347690710 2695381420 3369226775 6738453550 10590011737 13476907100 21180023474 42360046948 52950058685 105900117370 201210223003 211800234740 264750293425 402420446006 529500586850 804840892012 1006051115015 1059001173700 2012102230030 4024204460060 5030255575075 10060511150150 20121022300300