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320301250421 = 1572374185933
BaseRepresentation
bin1001010100100110111…
…00010011011101110101
31010121202100022101212212
410222103130103131311
520221434110003141
6403051103223205
732066235464345
oct4522334233565
91117670271785
10320301250421
11113925784209
12520b02a7b05
1324286a51519
1411707444d25
1584e9ad42eb
hex4a93713775

320301250421 has 8 divisors (see below), whose sum is σ = 322358714424. Its totient is φ = 318244006080.

The previous prime is 320301250351. The next prime is 320301250433. The reversal of 320301250421 is 124052103023.

It can be written as a sum of positive squares in 4 ways, for example, as 138045687025 + 182255563396 = 371545^2 + 426914^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-320301250421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320301250471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3684371 + ... + 3770303.

It is an arithmetic number, because the mean of its divisors is an integer number (40294839303).

Almost surely, 2320301250421 is an apocalyptic number.

It is an amenable number.

320301250421 is a deficient number, since it is larger than the sum of its proper divisors (2057464003).

320301250421 is a wasteful number, since it uses less digits than its factorization.

320301250421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109831.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 320301250421 its reverse (124052103023), we get a palindrome (444353353444).

The spelling of 320301250421 in words is "three hundred twenty billion, three hundred one million, two hundred fifty thousand, four hundred twenty-one".

Divisors: 1 157 23741 85933 3727337 13491481 2040135353 320301250421