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13020486549 = 37620023169
BaseRepresentation
bin11000010000001010…
…01101101110010101
31020121102100020201120
430020011031232111
5203131221032144
65552002114153
7640442211120
oct141005155625
936542306646
1013020486549
1155817a8294
12263464b959
1312c66c5715
148b737d3b7
1551314be19
hex30814db95

13020486549 has 8 divisors (see below), whose sum is σ = 19840741440. Its totient is φ = 7440278016.

The previous prime is 13020486547. The next prime is 13020486601. The reversal of 13020486549 is 94568402031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13020486549 - 21 = 13020486547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13020486549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020486547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310011564 + ... + 310011605.

It is an arithmetic number, because the mean of its divisors is an integer number (2480092680).

Almost surely, 213020486549 is an apocalyptic number.

It is an amenable number.

13020486549 is a deficient number, since it is larger than the sum of its proper divisors (6820254891).

13020486549 is an equidigital number, since it uses as much as digits as its factorization.

13020486549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620023179.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 13020486549 in words is "thirteen billion, twenty million, four hundred eighty-six thousand, five hundred forty-nine".

Divisors: 1 3 7 21 620023169 1860069507 4340162183 13020486549