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30320222320 = 2451319287341
BaseRepresentation
bin11100001111001110…
…011110000001110000
32220021001211212211001
4130033032132001300
5444043434103240
621532351331344
72122235431423
oct341716360160
986231755731
1030320222320
1111949a7a883
125a62220b54
132b2282356b
141678ba39ba
15bc6cce89a
hex70f39e070

30320222320 has 40 divisors (see below), whose sum is σ = 70548207840. Its totient is φ = 12118851840.

The previous prime is 30320222243. The next prime is 30320222323. The reversal of 30320222320 is 2322202303.

It is a tau number, because it is divible by the number of its divisors (40).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320222323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38151 + ... + 249190.

It is an arithmetic number, because the mean of its divisors is an integer number (1763705196).

Almost surely, 230320222320 is an apocalyptic number.

It is an amenable number.

30320222320 is an abundant number, since it is smaller than the sum of its proper divisors (40227985520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30320222320 is a wasteful number, since it uses less digits than its factorization.

30320222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288673 (or 288667 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 30320222320 its reverse (2322202303), we get a palindrome (32642424623).

The spelling of 30320222320 in words is "thirty billion, three hundred twenty million, two hundred twenty-two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1319 2638 5276 6595 10552 13190 21104 26380 52760 105520 287341 574682 1149364 1436705 2298728 2873410 4597456 5746820 11493640 22987280 379002779 758005558 1516011116 1895013895 3032022232 3790027790 6064044464 7580055580 15160111160 30320222320