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30221303232 = 263157402621
BaseRepresentation
bin11100001001010101…
…000111110111000000
32220000011201021100010
4130021111013313000
5443343123200412
621514455224520
72116624560531
oct341125076700
986004637303
1030221303232
11118a915746a
125a35078140
132b0819aa63
1416699b4688
15bbd29033c
hex709547dc0

30221303232 has 28 divisors (see below), whose sum is σ = 79960531976. Its totient is φ = 10073767680.

The previous prime is 30221303227. The next prime is 30221303239. The reversal of 30221303232 is 23230312203.

It is a junction number, because it is equal to n+sod(n) for n = 30221303199 and 30221303208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221303239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78701119 + ... + 78701502.

Almost surely, 230221303232 is an apocalyptic number.

30221303232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30221303232 is an abundant number, since it is smaller than the sum of its proper divisors (49739228744).

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

30221303232 is a wasteful number, since it uses less digits than its factorization.

30221303232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157402636 (or 157402626 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 30221303232 its reverse (23230312203), we get a palindrome (53451615435).

The spelling of 30221303232 in words is "thirty billion, two hundred twenty-one million, three hundred three thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 157402621 314805242 472207863 629610484 944415726 1259220968 1888831452 2518441936 3777662904 5036883872 7555325808 10073767744 15110651616 30221303232