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15213412132 = 2217223726649
BaseRepresentation
bin11100010101100101…
…00011111100100100
31110021020201102002121
432022302203330210
5222124113142012
610553340115324
71046000604142
oct161262437444
943236642077
1015213412132
1164a7635786
122b46b35b44
131585b1b019
14a446d8592
155e091ca07
hex38aca3f24

15213412132 has 12 divisors (see below), whose sum is σ = 28189557900. Its totient is φ = 7159252736.

The previous prime is 15213412111. The next prime is 15213412141. The reversal of 15213412132 is 23121431251.

15213412132 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 7161221376 + 8052190756 = 84624^2 + 89734^2 .

It is a super-3 number, since 3×152134121323 (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15213412097 and 15213412106.

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, 111863257 + ... + 111863392.

It is an arithmetic number, because the mean of its divisors is an integer number (2349129825).

Almost surely, 215213412132 is an apocalyptic number.

It is an amenable number.

15213412132 is a deficient number, since it is larger than the sum of its proper divisors (12976145768).

15213412132 is a wasteful number, since it uses less digits than its factorization.

15213412132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223726670 (or 223726668 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

Adding to 15213412132 its reverse (23121431251), we get a palindrome (38334843383).

The spelling of 15213412132 in words is "fifteen billion, two hundred thirteen million, four hundred twelve thousand, one hundred thirty-two".

Divisors: 1 2 4 17 34 68 223726649 447453298 894906596 3803353033 7606706066 15213412132