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13000021130 = 252356521831
BaseRepresentation
bin11000001101101110…
…01001010010001010
31020112222211111110002
430012313021102022
5203111001134010
65545551323002
7640103233145
oct140667112212
936488744402
1013000021130
11557119a318
122629820462
1312c23ab4c5
148b477305c
155114581a5
hex306dc948a

13000021130 has 16 divisors (see below), whose sum is σ = 24417431424. Its totient is φ = 4973921040.

The previous prime is 13000021129. The next prime is 13000021147. The reversal of 13000021130 is 3112000031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28260686 + ... + 28261145.

It is an arithmetic number, because the mean of its divisors is an integer number (1526089464).

Almost surely, 213000021130 is an apocalyptic number.

13000021130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13000021130 is a deficient number, since it is larger than the sum of its proper divisors (11417410294).

13000021130 is a wasteful number, since it uses less digits than its factorization.

13000021130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56521861.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 13000021130 its reverse (3112000031), we get a palindrome (16112021161).

The spelling of 13000021130 in words is "thirteen billion, twenty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 56521831 113043662 282609155 565218310 1300002113 2600004226 6500010565 13000021130