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30313130033220 = 2235505218833887
BaseRepresentation
bin1101110010001110100110…
…10110010000000001000100
310222022220111011002120201220
412321013103112100001010
512433122242242030340
6144245354254320340
76246023422636026
oct671072326200104
9128286434076656
1030313130033220
1197277a9707681
123496a79ab90b0
1313bb69256a488
1476b240226016
153787aa022ed0
hex1b91d3590044

30313130033220 has 24 divisors (see below), whose sum is σ = 84876764093184. Its totient is φ = 8083501342176.

The previous prime is 30313130033167. The next prime is 30313130033239. The reversal of 30313130033220 is 2233003131303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252609416884 + ... + 252609417003.

It is an arithmetic number, because the mean of its divisors is an integer number (3536531837216).

Almost surely, 230313130033220 is an apocalyptic number.

30313130033220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30313130033220 is an abundant number, since it is smaller than the sum of its proper divisors (54563634059964).

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

30313130033220 is a wasteful number, since it uses less digits than its factorization.

30313130033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505218833899 (or 505218833897 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 30313130033220 its reverse (2233003131303), we get a palindrome (32546133164523).

The spelling of 30313130033220 in words is "thirty trillion, three hundred thirteen billion, one hundred thirty million, thirty-three thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 505218833887 1010437667774 1515656501661 2020875335548 2526094169435 3031313003322 5052188338870 6062626006644 7578282508305 10104376677740 15156565016610 30313130033220