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13001312330 = 251379490009
BaseRepresentation
bin11000001101111000…
…00100100001001010
31020120002021002122022
430012330010201022
5203111313443310
65550035124442
7640120221446
oct140674044112
936502232568
1013001312330
1155719a1426
12262a143722
1312c2741126
148b49cb826
15511610a55
hex306f0484a

13001312330 has 16 divisors (see below), whose sum is σ = 23573184840. Its totient is φ = 5162564352.

The previous prime is 13001312249. The next prime is 13001312333. The reversal of 13001312330 is 3321310031.

It can be written as a sum of positive squares in 4 ways, for example, as 12491862289 + 509450041 = 111767^2 + 22571^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13001312299 and 13001312308.

It is not an unprimeable number, because it can be changed into a prime (13001312333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4743635 + ... + 4746374.

Almost surely, 213001312330 is an apocalyptic number.

13001312330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13001312330 is a deficient number, since it is larger than the sum of its proper divisors (10571872510).

13001312330 is a wasteful number, since it uses less digits than its factorization.

13001312330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9490153.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 13001312330 its reverse (3321310031), we get a palindrome (16322622361).

The spelling of 13001312330 in words is "thirteen billion, one million, three hundred twelve thousand, three hundred thirty".

Divisors: 1 2 5 10 137 274 685 1370 9490009 18980018 47450045 94900090 1300131233 2600262466 6500656165 13001312330