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12203230212020 = 225610161510601
BaseRepresentation
bin1011000110010100100100…
…1100111010111110110100
31121012121200002120120011002
42301211021030322332310
53044414203413241040
641542030410502432
72366440264220201
oct261451114727664
947177602516132
1012203230212020
1139853a7354111
121451099134a18
136a69b4cc7c03
143028d4ab0ca8
15162679c5ea15
hexb194933afb4

12203230212020 has 12 divisors (see below), whose sum is σ = 25626783445284. Its totient is φ = 4881292084800.

The previous prime is 12203230212001. The next prime is 12203230212059. The reversal of 12203230212020 is 2021203230221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4515132013456 + 7688098198564 = 2124884^2 + 2772742^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 610161510601 = 12203230212020 / (1 + 2 + 2 + 0 + 3 + 2 + 3 + 0 + 2 + 1 + 2 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 12203230211983 and 12203230212001.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 305080755281 + ... + 305080755320.

It is an arithmetic number, because the mean of its divisors is an integer number (2135565287107).

Almost surely, 212203230212020 is an apocalyptic number.

12203230212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12203230212020 is an abundant number, since it is smaller than the sum of its proper divisors (13423553233264).

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

12203230212020 is a wasteful number, since it uses less digits than its factorization.

12203230212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610161510610 (or 610161510608 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12203230212020 its reverse (2021203230221), we get a palindrome (14224433442241).

The spelling of 12203230212020 in words is "twelve trillion, two hundred three billion, two hundred thirty million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 610161510601 1220323021202 2440646042404 3050807553005 6101615106010 12203230212020