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12054313220 = 225602715661
BaseRepresentation
bin10110011100111111…
…00011100100000100
31011010002022120002012
423032133203210010
5144141401010340
65312045433352
7604500654215
oct131637434404
934102276065
1012054313220
115126388a34
122404b6b858
1311a14a0221
14824d1940c
154a83ed565
hex2ce7e3904

12054313220 has 12 divisors (see below), whose sum is σ = 25314057804. Its totient is φ = 4821725280.

The previous prime is 12054313207. The next prime is 12054313261. The reversal of 12054313220 is 2231345021.

12054313220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3371428096 + 8682885124 = 58064^2 + 93182^2 .

It is an unprimeable number.

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, 301357811 + ... + 301357850.

It is an arithmetic number, because the mean of its divisors is an integer number (2109504817).

Almost surely, 212054313220 is an apocalyptic number.

12054313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12054313220 is an abundant number, since it is smaller than the sum of its proper divisors (13259744584).

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

12054313220 is a wasteful number, since it uses less digits than its factorization.

12054313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602715670 (or 602715668 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 12054313220 its reverse (2231345021), we get a palindrome (14285658241).

The spelling of 12054313220 in words is "twelve billion, fifty-four million, three hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 602715661 1205431322 2410862644 3013578305 6027156610 12054313220