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12586747460 = 2257139683947
BaseRepresentation
bin10111011100011101…
…01000011001000100
31012111012012000112212
423232032220121010
5201234201404320
65440545402552
7623624405510
oct135616503104
935435160485
1012586747460
115379988731
122533339458
1312578a0281
14875915140
154da0219c5
hex2ee3a8644

12586747460 has 96 divisors (see below), whose sum is σ = 30502241280. Its totient is φ = 4273619328.

The previous prime is 12586747427. The next prime is 12586747483. The reversal of 12586747460 is 6474768521.

It is a junction number, because it is equal to n+sod(n) for n = 12586747399 and 12586747408.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13290707 + ... + 13291653.

It is an arithmetic number, because the mean of its divisors is an integer number (317731680).

Almost surely, 212586747460 is an apocalyptic number.

12586747460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12586747460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15251120640).

12586747460 is an abundant number, since it is smaller than the sum of its proper divisors (17915493820).

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

12586747460 is a wasteful number, since it uses less digits than its factorization.

12586747460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785 (or 1783 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 12586747460 in words is "twelve billion, five hundred eighty-six million, seven hundred forty-seven thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 139 140 278 556 683 695 947 973 1366 1390 1894 1946 2732 2780 3415 3788 3892 4735 4781 4865 6629 6830 9470 9562 9730 13258 13660 18940 19124 19460 23905 26516 33145 47810 66290 94937 95620 131633 132580 189874 263266 379748 474685 526532 646801 658165 664559 921431 949370 1293602 1316330 1329118 1842862 1898740 2587204 2632660 2658236 3234005 3322795 3685724 4527607 4607155 6468010 6645590 9055214 9214310 12936020 13291180 18110428 18428620 22638035 45276070 89905339 90552140 179810678 359621356 449526695 629337373 899053390 1258674746 1798106780 2517349492 3146686865 6293373730 12586747460