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13003123300 = 2252130031233
BaseRepresentation
bin11000001110000101…
…11110101001100100
31020120012200002211021
430013002332221210
5203112244421200
65550142020524
7640141503316
oct140702765144
936505602737
1013003123300
115572a18aa2
12262a877744
1312c2c264cb
148b4d3d7b6
1551186c41a
hex3070bea64

13003123300 has 18 divisors (see below), whose sum is σ = 28216777778. Its totient is φ = 5201249280.

The previous prime is 13003123283. The next prime is 13003123303. The reversal of 13003123300 is 332130031.

It can be written as a sum of positive squares in 3 ways, for example, as 3549061476 + 9454061824 = 59574^2 + 97232^2 .

It is not an unprimeable number, because it can be changed into a prime (13003123303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65015517 + ... + 65015716.

Almost surely, 213003123300 is an apocalyptic number.

13003123300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13003123300 is an abundant number, since it is smaller than the sum of its proper divisors (15213654478).

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

13003123300 is a wasteful number, since it uses less digits than its factorization.

13003123300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130031247 (or 130031240 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 13003123300 its reverse (332130031), we get a palindrome (13335253331).

The spelling of 13003123300 in words is "thirteen billion, three million, one hundred twenty-three thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 130031233 260062466 520124932 650156165 1300312330 2600624660 3250780825 6501561650 13003123300