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30301030312321 = 279557108389453
BaseRepresentation
bin1101110001111000000100…
…01001011110100110000001
310222021202020220100002000211
412320330002021132212001
512432423002224443241
6144240033503314121
76245114531001556
oct670740211364601
9128252226302024
1030301030312321
11972265a73523a
1234946618ab941
1313ba4b485c202
1476a81328aa2d
153782ecb55781
hex1b8f0225e981

30301030312321 has 4 divisors (see below), whose sum is σ = 30301138981332. Its totient is φ = 30300921643312.

The previous prime is 30301030312307. The next prime is 30301030312337. The reversal of 30301030312321 is 12321303010303.

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 4850125290000 + 25450905022321 = 2202300^2 + 5044889^2 .

It is a cyclic number.

It is not a de Polignac number, because 30301030312321 - 27 = 30301030312193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30301030312292 and 30301030312301.

It is not an unprimeable number, because it can be changed into a prime (30301030012321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53915170 + ... + 54474283.

It is an arithmetic number, because the mean of its divisors is an integer number (7575284745333).

Almost surely, 230301030312321 is an apocalyptic number.

It is an amenable number.

30301030312321 is a deficient number, since it is larger than the sum of its proper divisors (108669011).

30301030312321 is a wasteful number, since it uses less digits than its factorization.

30301030312321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108669010.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 30301030312321 its reverse (12321303010303), we get a palindrome (42622333322624).

The spelling of 30301030312321 in words is "thirty trillion, three hundred one billion, thirty million, three hundred twelve thousand, three hundred twenty-one".

Divisors: 1 279557 108389453 30301030312321