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122400203441 = 560812182561
BaseRepresentation
bin111000111111110011…
…1101110001010110001
3102200221021120120122012
41301333213232022301
54001133423002231
6132121353052305
711562122364035
oct1617747561261
9380837516565
10122400203441
1147a007a652a
121b87b6b7095
13b7085447a9
145cd201a1c5
1532b5a6be2b
hex1c7f9ee2b1

122400203441 has 4 divisors (see below), whose sum is σ = 122402442084. Its totient is φ = 122397964800.

The previous prime is 122400203423. The next prime is 122400203489. The reversal of 122400203441 is 144302004221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58595464225 + 63804739216 = 242065^2 + 252596^2 .

It is a cyclic number.

It is not a de Polignac number, because 122400203441 - 214 = 122400187057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122400223441) by changing a digit.

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, 1035200 + ... + 1147361.

It is an arithmetic number, because the mean of its divisors is an integer number (30600610521).

Almost surely, 2122400203441 is an apocalyptic number.

It is an amenable number.

122400203441 is a deficient number, since it is larger than the sum of its proper divisors (2238643).

122400203441 is an equidigital number, since it uses as much as digits as its factorization.

122400203441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238642.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 122400203441 its reverse (144302004221), we get a palindrome (266702207662).

The spelling of 122400203441 in words is "one hundred twenty-two billion, four hundred million, two hundred three thousand, four hundred forty-one".

Divisors: 1 56081 2182561 122400203441