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12341203220 = 2253413180797
BaseRepresentation
bin10110111111001011…
…11101000100010100
31011212002011002011202
423133211331010110
5200233322000340
65400334452032
7614553332213
oct133745750424
934762132152
1012341203220
115263318705
122485064018
131218a5aa18
1485107907a
154c36bcc15
hex2df97d114

12341203220 has 24 divisors (see below), whose sum is σ = 25924263624. Its totient is φ = 4935007616.

The previous prime is 12341203187. The next prime is 12341203243. The reversal of 12341203220 is 2230214321.

It can be written as a sum of positive squares in 4 ways, for example, as 1425968644 + 10915234576 = 37762^2 + 104476^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12341203192 and 12341203201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22139 + ... + 158658.

It is an arithmetic number, because the mean of its divisors is an integer number (1080177651).

Almost surely, 212341203220 is an apocalyptic number.

12341203220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12341203220 is an abundant number, since it is smaller than the sum of its proper divisors (13583060404).

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

12341203220 is a wasteful number, since it uses less digits than its factorization.

12341203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184219 (or 184217 counting only the distinct ones).

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

Adding to 12341203220 its reverse (2230214321), we get a palindrome (14571417541).

The spelling of 12341203220 in words is "twelve billion, three hundred forty-one million, two hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 3413 6826 13652 17065 34130 68260 180797 361594 723188 903985 1807970 3615940 617060161 1234120322 2468240644 3085300805 6170601610 12341203220