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13030103444 = 223257525861
BaseRepresentation
bin11000010001010011…
…11001100110010100
31020122002102211121212
430020221321212110
5203141201302234
65552544200552
7640620023531
oct141051714624
936562384555
1013030103444
115587176636
122637909158
1312c86b1aa7
148b8763d88
15513deb5ce
hex308a79994

13030103444 has 6 divisors (see below), whose sum is σ = 22802681034. Its totient is φ = 6515051720.

The previous prime is 13030103417. The next prime is 13030103447. The reversal of 13030103444 is 44430103031.

It can be written as a sum of positive squares in only one way, i.e., 6949223044 + 6080880400 = 83362^2 + 77980^2 .

It is a super-2 number, since 2×130301034442 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13030103447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1628762927 + ... + 1628762934.

It is an arithmetic number, because the mean of its divisors is an integer number (3800446839).

Almost surely, 213030103444 is an apocalyptic number.

It is an amenable number.

13030103444 is a deficient number, since it is larger than the sum of its proper divisors (9772577590).

13030103444 is a wasteful number, since it uses less digits than its factorization.

13030103444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257525865 (or 3257525863 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13030103444 its reverse (44430103031), we get a palindrome (57460206475).

The spelling of 13030103444 in words is "thirteen billion, thirty million, one hundred three thousand, four hundred forty-four".

Divisors: 1 2 4 3257525861 6515051722 13030103444