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331123021222020 = 22357969857177473
BaseRepresentation
bin100101101001001111001011…
…0000011101001000010000100
31121102102001101200012100210120
41023102132112003221002010
5321400104421413101040
63132123452125421540
7126513564101102226
oct11322362603510204
91542361350170716
10331123021222020
1196562537136395
1231179a39a0a8b0
131129b9c7bcbba1
145baa622900416
15284340a1db7d0
hex12d27960e9084

331123021222020 has 48 divisors (see below), whose sum is σ = 938880465250560. Its totient is φ = 87181757485056.

The previous prime is 331123021221929. The next prime is 331123021222031. The reversal of 331123021222020 is 20222120321133.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34928583997 + ... + 34928593476.

It is an arithmetic number, because the mean of its divisors is an integer number (19560009692720).

Almost surely, 2331123021222020 is an apocalyptic number.

331123021222020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331123021222020 is an abundant number, since it is smaller than the sum of its proper divisors (607757444028540).

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

331123021222020 is a wasteful number, since it uses less digits than its factorization.

331123021222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69857177564 (or 69857177562 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 331123021222020 its reverse (20222120321133), we get a palindrome (351345141543153).

The spelling of 331123021222020 in words is "three hundred thirty-one trillion, one hundred twenty-three billion, twenty-one million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 79 158 237 316 395 474 790 948 1185 1580 2370 4740 69857177473 139714354946 209571532419 279428709892 349285887365 419143064838 698571774730 838286129676 1047857662095 1397143549460 2095715324190 4191430648380 5518717020367 11037434040734 16556151061101 22074868081468 27593585101835 33112302122202 55187170203670 66224604244404 82780755305505 110374340407340 165561510611010 331123021222020