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30023130321 = 3253107588239
BaseRepresentation
bin11011111101100001…
…001001110011010001
32212111100211001012200
4123331201021303101
5442441410132241
621443055513413
72112000253122
oct337541116321
985440731180
1030023130321
11118073021a8
12599a828869
132aa6103292
14164b54a049
15baab974b6
hex6fd849cd1

30023130321 has 24 divisors (see below), whose sum is σ = 44598003840. Its totient is φ = 19454207136.

The previous prime is 30023130317. The next prime is 30023130343. The reversal of 30023130321 is 12303132003.

30023130321 is a `hidden beast` number, since 30 + 0 + 2 + 313 + 0 + 321 = 666.

It is not a de Polignac number, because 30023130321 - 22 = 30023130317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30023130294 and 30023130303.

It is not an unprimeable number, because it can be changed into a prime (30023131321) 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 23 ways as a sum of consecutive naturals, for example, 243081 + ... + 345158.

It is an arithmetic number, because the mean of its divisors is an integer number (1858250160).

Almost surely, 230023130321 is an apocalyptic number.

It is an amenable number.

30023130321 is a deficient number, since it is larger than the sum of its proper divisors (14574873519).

30023130321 is a wasteful number, since it uses less digits than its factorization.

30023130321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588405 (or 588402 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30023130321 its reverse (12303132003), we get a palindrome (42326262324).

The spelling of 30023130321 in words is "thirty billion, twenty-three million, one hundred thirty thousand, three hundred twenty-one".

Divisors: 1 3 9 53 107 159 321 477 963 5671 17013 51039 588239 1764717 5294151 31176667 62941573 93530001 188824719 280590003 566474157 3335903369 10007710107 30023130321