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15306006220 = 225765300311
BaseRepresentation
bin11100100000100111…
…10001111011001100
31110111200221200022021
432100103301323030
5222321314144340
611010444455524
71051203622561
oct162023617314
943450850267
1015306006220
11654492901a
122b71b4a5a4
13159c06a91b
14a52b1c868
155e8b0ce4a
hex3904f1ecc

15306006220 has 12 divisors (see below), whose sum is σ = 32142613104. Its totient is φ = 6122402480.

The previous prime is 15306006181. The next prime is 15306006227. The reversal of 15306006220 is 2260060351.

15306006220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (15306006227) 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 3 ways as a sum of consecutive naturals, for example, 382650136 + ... + 382650175.

It is an arithmetic number, because the mean of its divisors is an integer number (2678551092).

Almost surely, 215306006220 is an apocalyptic number.

15306006220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15306006220 is an abundant number, since it is smaller than the sum of its proper divisors (16836606884).

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

15306006220 is a wasteful number, since it uses less digits than its factorization.

15306006220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765300320 (or 765300318 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 15306006220 its reverse (2260060351), we get a palindrome (17566066571).

The spelling of 15306006220 in words is "fifteen billion, three hundred six million, six thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 765300311 1530600622 3061201244 3826501555 7653003110 15306006220