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30320130221 = 1072767102409
BaseRepresentation
bin11100001111001110…
…000111100010101101
32220021001200012110222
4130033032013202231
5444043423131341
621532345341125
72122234566053
oct341716074255
986231605428
1030320130221
1111949a17667
125a621977a5
132b227c0674
141678b7c1d3
15bc6cb244b
hex70f3878ad

30320130221 has 8 divisors (see below), whose sum is σ = 30614855040. Its totient is φ = 30025615968.

The previous prime is 30320130193. The next prime is 30320130277. The reversal of 30320130221 is 12203102303.

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-30320130221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30320130221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320139221) 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 7 ways as a sum of consecutive naturals, for example, 244865 + ... + 347273.

It is an arithmetic number, because the mean of its divisors is an integer number (3826856880).

Almost surely, 230320130221 is an apocalyptic number.

It is an amenable number.

30320130221 is a deficient number, since it is larger than the sum of its proper divisors (294724819).

30320130221 is a wasteful number, since it uses less digits than its factorization.

30320130221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105283.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30320130221 its reverse (12203102303), we get a palindrome (42523232524).

The spelling of 30320130221 in words is "thirty billion, three hundred twenty million, one hundred thirty thousand, two hundred twenty-one".

Divisors: 1 107 2767 102409 296069 10957763 283365703 30320130221