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30504225220 = 2257217887323
BaseRepresentation
bin11100011010001100…
…011000100111000100
32220201220002012100021
4130122030120213010
5444433040201340
622002523224524
72126631431140
oct343214304704
986656065307
1030504225220
1111a33926997
125ab3978144
132b51999411
1416953c0220
15bd8028e4a
hex71a3189c4

30504225220 has 24 divisors (see below), whose sum is σ = 73210140864. Its totient is φ = 10458591456.

The previous prime is 30504225209. The next prime is 30504225221. The reversal of 30504225220 is 2252240503.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30504225221) 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, 108943522 + ... + 108943801.

It is an arithmetic number, because the mean of its divisors is an integer number (3050422536).

Almost surely, 230504225220 is an apocalyptic number.

It is an amenable number.

30504225220 is an abundant number, since it is smaller than the sum of its proper divisors (42705915644).

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

30504225220 is a wasteful number, since it uses less digits than its factorization.

30504225220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217887339 (or 217887337 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 30504225220 its reverse (2252240503), we get a palindrome (32756465723).

The spelling of 30504225220 in words is "thirty billion, five hundred four million, two hundred twenty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 217887323 435774646 871549292 1089436615 1525211261 2178873230 3050422522 4357746460 6100845044 7626056305 15252112610 30504225220