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30331322232221 = 491113695433599
BaseRepresentation
bin1101110010110000011111…
…01011111110110110011101
310222101122102222221001020002
412321120033223332312131
512433422021442412341
6144302003404304045
76250236304035053
oct671301753766635
9128348388831202
1030331322232221
119734494733a8a
12349a4b6542025
1313c030155337a
1476c0883a41d3
15378ec21e429b
hex1b960fafed9d

30331322232221 has 8 divisors (see below), whose sum is σ = 30395775744000. Its totient is φ = 30266879611360.

The previous prime is 30331322232199. The next prime is 30331322232283. The reversal of 30331322232221 is 12223222313303.

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-30331322232221 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 (30331322232721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2865380 + ... + 8298978.

It is an arithmetic number, because the mean of its divisors is an integer number (3799471968000).

Almost surely, 230331322232221 is an apocalyptic number.

It is an amenable number.

30331322232221 is a deficient number, since it is larger than the sum of its proper divisors (64453511779).

30331322232221 is a wasteful number, since it uses less digits than its factorization.

30331322232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5445459.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 30331322232221 its reverse (12223222313303), we get a palindrome (42554544545524).

The spelling of 30331322232221 in words is "thirty trillion, three hundred thirty-one billion, three hundred twenty-two million, two hundred thirty-two thousand, two hundred twenty-one".

Divisors: 1 491 11369 5433599 5582179 2667897109 61774587031 30331322232221