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13028848704 = 26342513281
BaseRepresentation
bin11000010001001010…
…00111010001000000
31020122000002002110000
430020211013101000
5203140341124304
65552501240000
7640603246434
oct141045072100
936560062400
1013028848704
115586499963
122637403000
1312c8362941
148b85189c4
15513c4e939
hex308947440

13028848704 has 70 divisors (see below), whose sum is σ = 38621604494. Its totient is φ = 4342947840.

The previous prime is 13028848639. The next prime is 13028848711. The reversal of 13028848704 is 40784882031.

It can be written as a sum of positive squares in only one way, i.e., 13006946304 + 21902400 = 114048^2 + 4680^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13028848704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1251457 + ... + 1261824.

Almost surely, 213028848704 is an apocalyptic number.

It is an amenable number.

13028848704 is an abundant number, since it is smaller than the sum of its proper divisors (25592755790).

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

13028848704 is an equidigital number, since it uses as much as digits as its factorization.

13028848704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513305 (or 2513286 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The spelling of 13028848704 in words is "thirteen billion, twenty-eight million, eight hundred forty-eight thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 144 162 192 216 288 324 432 576 648 864 1296 1728 2592 5184 2513281 5026562 7539843 10053124 15079686 20106248 22619529 30159372 40212496 45239058 60318744 67858587 80424992 90478116 120637488 135717174 160849984 180956232 203575761 241274976 271434348 361912464 407151522 482549952 542868696 723824928 814303044 1085737392 1447649856 1628606088 2171474784 3257212176 4342949568 6514424352 13028848704