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13030012031012 = 225384297291769
BaseRepresentation
bin1011110110011100100100…
…1111010001000000100100
31201010122201221102200002122
42331213021033101000210
53201440431034443022
643413523242325112
72513246562556154
oct275471117210044
951118657380078
1013030012031012
114173aa7110909
1215653787b9798
137369566a3652
14330927cc2764
15178e1938a742
hexbd9c93d1024

13030012031012 has 24 divisors (see below), whose sum is σ = 23235516775800. Its totient is φ = 6391322153216.

The previous prime is 13030012031011. The next prime is 13030012031041. The reversal of 13030012031012 is 21013021003031.

It can be written as a sum of positive squares in 4 ways, for example, as 2569147356736 + 10460864674276 = 1602856^2 + 3234326^2 .

It is not an unprimeable number, because it can be changed into a prime (13030012031011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1858937 + ... + 5432832.

It is an arithmetic number, because the mean of its divisors is an integer number (968146532325).

Almost surely, 213030012031012 is an apocalyptic number.

It is an amenable number.

13030012031012 is a deficient number, since it is larger than the sum of its proper divisors (10205504744788).

13030012031012 is a wasteful number, since it uses less digits than its factorization.

13030012031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7300255 (or 7300253 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13030012031012 its reverse (21013021003031), we get a palindrome (34043033034043).

The spelling of 13030012031012 in words is "thirteen trillion, thirty billion, twelve million, thirty-one thousand, twelve".

Divisors: 1 2 4 53 106 212 8429 16858 33716 446737 893474 1786948 7291769 14583538 29167076 386463757 772927514 1545855028 61462320901 122924641802 245849283604 3257503007753 6515006015506 13030012031012