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13012313332 = 22176117318133
BaseRepresentation
bin11000001111001100…
…00010010011110100
31020120211222000011211
430013212002103310
5203122123011312
65551111011204
7640312560364
oct140746022364
936524860154
1013012313332
115578125667
122631969b04
1312c4ac34b5
148b62529a4
155125853a7
hex3079824f4

13012313332 has 48 divisors (see below), whose sum is σ = 24649328592. Its totient is φ = 5987911680.

The previous prime is 13012313269. The next prime is 13012313339. The reversal of 13012313332 is 23331321031.

It can be written as a sum of positive squares in 8 ways, for example, as 22240656 + 12990072676 = 4716^2 + 113974^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012313339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 708538 + ... + 726670.

It is an arithmetic number, because the mean of its divisors is an integer number (513527679).

Almost surely, 213012313332 is an apocalyptic number.

It is an amenable number.

13012313332 is a deficient number, since it is larger than the sum of its proper divisors (11637015260).

13012313332 is a wasteful number, since it uses less digits than its factorization.

13012313332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18388 (or 18386 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13012313332 its reverse (23331321031), we get a palindrome (36343634363).

The spelling of 13012313332 in words is "thirteen billion, twelve million, three hundred thirteen thousand, three hundred thirty-two".

Divisors: 1 2 4 17 34 61 68 122 173 244 346 692 1037 2074 2941 4148 5882 10553 11764 18133 21106 36266 42212 72532 179401 308261 358802 616522 717604 1106113 1233044 2212226 3137009 4424452 6274018 12548036 18803921 37607842 53329153 75215684 106658306 191357549 213316612 382715098 765430196 3253078333 6506156666 13012313332