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30315116280 = 2335416161609
BaseRepresentation
bin11100001110111010…
…111111011011111000
32220020201020110122110
4130032322333123320
5444041132210110
621532050052320
72122144144131
oct341672773370
986221213573
1030315116280
1111947102609
125a6057a0a0
132b21756437
141678234c88
15bc6621a20
hex70eebf6f8

30315116280 has 64 divisors (see below), whose sum is σ = 93163543200. Its totient is φ = 7886858240.

The previous prime is 30315116267. The next prime is 30315116311. The reversal of 30315116280 is 8261151303.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3075885 + ... + 3085724.

Almost surely, 230315116280 is an apocalyptic number.

30315116280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30315116280 is an abundant number, since it is smaller than the sum of its proper divisors (62848426920).

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

30315116280 is a wasteful number, since it uses less digits than its factorization.

30315116280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6161664 (or 6161660 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 30315116280 its reverse (8261151303), we get a palindrome (38576267583).

The spelling of 30315116280 in words is "thirty billion, three hundred fifteen million, one hundred sixteen thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 41 60 82 120 123 164 205 246 328 410 492 615 820 984 1230 1640 2460 4920 6161609 12323218 18484827 24646436 30808045 36969654 49292872 61616090 73939308 92424135 123232180 147878616 184848270 246464360 252625969 369696540 505251938 739393080 757877907 1010503876 1263129845 1515755814 2021007752 2526259690 3031511628 3789389535 5052519380 6063023256 7578779070 10105038760 15157558140 30315116280