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1210304222420 = 225451713397213
BaseRepresentation
bin10001100111001011110…
…000001101010011010100
311021201000011220211210212
4101213023300031103110
5124312200340104140
62324001151504552
7153304316101556
oct21471360152324
94251004824725
101210304222420
114273181a9997
12176694528158
138a192320b37
1442816c3d4d6
152173963d765
hex119cbc0d4d4

1210304222420 has 24 divisors (see below), whose sum is σ = 2542201739784. Its totient is φ = 484014475136.

The previous prime is 1210304222417. The next prime is 1210304222429. The reversal of 1210304222420 is 242224030121.

It can be written as a sum of positive squares in 4 ways, for example, as 18019303696 + 1192284918724 = 134236^2 + 1091918^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210304222429) by changing a digit.

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, 6608267 + ... + 6788946.

It is an arithmetic number, because the mean of its divisors is an integer number (105925072491).

Almost surely, 21210304222420 is an apocalyptic number.

1210304222420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210304222420 is an abundant number, since it is smaller than the sum of its proper divisors (1331897517364).

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

1210304222420 is a wasteful number, since it uses less digits than its factorization.

1210304222420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13401739 (or 13401737 counting only the distinct ones).

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

Adding to 1210304222420 its reverse (242224030121), we get a palindrome (1452528252541).

The spelling of 1210304222420 in words is "one trillion, two hundred ten billion, three hundred four million, two hundred twenty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 4517 9034 18068 22585 45170 90340 13397213 26794426 53588852 66986065 133972130 267944260 60515211121 121030422242 242060844484 302576055605 605152111210 1210304222420