Search a number
-
+
30304044221 = 114915610821
BaseRepresentation
bin11100001110010000…
…110000010010111101
32220012221101221122012
4130032100300102331
5444030313403341
621531012501005
72121651061103
oct341620602275
986187357565
1030304044221
111194092aa50
125a5891a765
132b1c37a919
141676991c73
15bc56860eb
hex70e4304bd

30304044221 has 8 divisors (see below), whose sum is σ = 33126293088. Its totient is φ = 27493018000.

The previous prime is 30304044217. The next prime is 30304044257. The reversal of 30304044221 is 12244040303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30304044221 - 22 = 30304044217 is a prime.

It is a super-2 number, since 2×303040442212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30304044721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2800010 + ... + 2810811.

It is an arithmetic number, because the mean of its divisors is an integer number (4140786636).

Almost surely, 230304044221 is an apocalyptic number.

It is an amenable number.

30304044221 is a deficient number, since it is larger than the sum of its proper divisors (2822248867).

30304044221 is a wasteful number, since it uses less digits than its factorization.

30304044221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611323.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30304044221 its reverse (12244040303), we get a palindrome (42548084524).

The spelling of 30304044221 in words is "thirty billion, three hundred four million, forty-four thousand, two hundred twenty-one".

Divisors: 1 11 491 5401 5610821 61719031 2754913111 30304044221