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1320004424401 = 13157646743961
BaseRepresentation
bin10011001101010110011…
…001010001001011010001
311200012011101012111121121
4103031112121101023101
5133111332113040101
62450222431522241
7164236640323405
oct23152631211321
94605141174547
101320004424401
114698a10a3343
121939aa989381
1397625690b60
1447c622a3105
152450a2670a1
hex133566512d1

1320004424401 has 8 divisors (see below), whose sum is σ = 1430597643944. Its totient is φ = 1210704693120.

The previous prime is 1320004424369. The next prime is 1320004424423. The reversal of 1320004424401 is 1044244000231.

It can be written as a sum of positive squares in 4 ways, for example, as 117648314001 + 1202356110400 = 342999^2 + 1096520^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320004424401 - 25 = 1320004424369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320004424801) 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, 323369940 + ... + 323374021.

It is an arithmetic number, because the mean of its divisors is an integer number (178824705493).

Almost surely, 21320004424401 is an apocalyptic number.

It is an amenable number.

1320004424401 is a deficient number, since it is larger than the sum of its proper divisors (110593219543).

1320004424401 is a wasteful number, since it uses less digits than its factorization.

1320004424401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646744131.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1320004424401 its reverse (1044244000231), we get a palindrome (2364248424632).

The spelling of 1320004424401 in words is "one trillion, three hundred twenty billion, four million, four hundred twenty-four thousand, four hundred one".

Divisors: 1 13 157 2041 646743961 8407671493 101538801877 1320004424401