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30221211501445 = 56118125235783
BaseRepresentation
bin1101101111100011011001…
…00100111000001110000101
310222000010020012011100210011
412313301230210320032011
512430121020121021240
6144135233301230221
76236260536210256
oct667615444701605
9128003205140704
1030221211501445
1196a1820033238
1234810a6702371
1313b2b041265c3
14766a005d8b2d
153761ca5276ea
hex1b7c6c938385

30221211501445 has 48 divisors (see below), whose sum is σ = 37142031793536. Its totient is φ = 23599940716800.

The previous prime is 30221211501413. The next prime is 30221211501487. The reversal of 30221211501445 is 54410511212203.

It is not a de Polignac number, because 30221211501445 - 25 = 30221211501413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5225868024 + ... + 5225873806.

It is an arithmetic number, because the mean of its divisors is an integer number (773792329032).

Almost surely, 230221211501445 is an apocalyptic number.

It is an amenable number.

30221211501445 is a deficient number, since it is larger than the sum of its proper divisors (6920820292091).

30221211501445 is an equidigital number, since it uses as much as digits as its factorization.

30221211501445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6734 (or 6553 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 30221211501445 its reverse (54410511212203), we get a palindrome (84631722713648).

The spelling of 30221211501445 in words is "thirty trillion, two hundred twenty-one billion, two hundred eleven million, five hundred one thousand, four hundred forty-five".

Divisors: 1 5 61 181 305 523 905 2615 5783 11041 28915 31903 32761 55205 94663 159515 163805 352763 473315 1046723 1763815 1998421 3024509 5233615 5774443 9992105 15122545 17134003 28872215 63850103 85670015 184495049 189456863 319250515 547436129 922475245 947284315 1045174183 2737180645 5225870915 11556868643 33393603869 57784343215 99085939349 166968019345 495429696745 6044242300289 30221211501445