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13013121322020 = 22352411497318089
BaseRepresentation
bin1011110101011101101001…
…1110010100110000100100
31201002001010210120202021010
42331113122132110300210
53201201333024301040
643402051224022220
72512111164114501
oct275273236246044
951061123522233
1013013121322020
11416791980a186
121562044001970
137351942279a1
1432dba49324a8
1517877b5a0e80
hexbd5da794c24

13013121322020 has 96 divisors (see below), whose sum is σ = 36461197906560. Its totient is φ = 3467837148160.

The previous prime is 13013121322013. The next prime is 13013121322031. The reversal of 13013121322020 is 2022312131031.

It is a super-2 number, since 2×130131213220202 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 719385136 + ... + 719403224.

It is an arithmetic number, because the mean of its divisors is an integer number (379804144860).

Almost surely, 213013121322020 is an apocalyptic number.

13013121322020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13013121322020 is an abundant number, since it is smaller than the sum of its proper divisors (23448076584540).

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

13013121322020 is a wasteful number, since it uses less digits than its factorization.

13013121322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25485 (or 25483 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13013121322020 its reverse (2022312131031), we get a palindrome (15035433453051).

The spelling of 13013121322020 in words is "thirteen trillion, thirteen billion, one hundred twenty-one million, three hundred twenty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2411 4822 4973 7233 9644 9946 12055 14466 14919 18089 19892 24110 24865 28932 29838 36165 36178 48220 49730 54267 59676 72330 72356 74595 90445 99460 108534 144660 149190 180890 217068 271335 298380 361780 542670 1085340 11989903 23979806 35969709 43612579 47959612 59949515 71939418 87225158 89956597 119899030 130837737 143878836 174450316 179848545 179913194 218062895 239798060 261675474 269869791 359697090 359826388 436125790 449782985 523350948 539739582 654188685 719394180 872251580 899565970 1079479164 1308377370 1349348955 1799131940 2616754740 2698697910 5397395820 216885355367 433770710734 650656066101 867541421468 1084426776835 1301312132202 2168853553670 2602624264404 3253280330505 4337707107340 6506560661010 13013121322020