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12065025712720 = 245421358225229
BaseRepresentation
bin1010111110010001101110…
…0100100110001001010000
31120201101221101102120022211
42233210123210212021100
53040133133040301340
641354332444441504
72353445404315621
oct257443344461120
946641841376284
1012065025712720
113931826531252
12142a348849294
1369695b40c086
142d9d43b07a48
1515dc8b9a85ea
hexaf91b926250

12065025712720 has 40 divisors (see below), whose sum is σ = 28117814753160. Its totient is φ = 4814547064320.

The previous prime is 12065025712697. The next prime is 12065025712741. The reversal of 12065025712720 is 2721752056021.

It can be written as a sum of positive squares in 4 ways, for example, as 1594805276736 + 10470220435984 = 1262856^2 + 3235772^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179078935 + ... + 179146294.

It is an arithmetic number, because the mean of its divisors is an integer number (702945368829).

Almost surely, 212065025712720 is an apocalyptic number.

12065025712720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12065025712720 is an abundant number, since it is smaller than the sum of its proper divisors (16052789040440).

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

12065025712720 is a wasteful number, since it uses less digits than its factorization.

12065025712720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358225663 (or 358225657 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

Adding to 12065025712720 its reverse (2721752056021), we get a palindrome (14786777768741).

The spelling of 12065025712720 in words is "twelve trillion, sixty-five billion, twenty-five million, seven hundred twelve thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 421 842 1684 2105 3368 4210 6736 8420 16840 33680 358225229 716450458 1432900916 1791126145 2865801832 3582252290 5731603664 7164504580 14329009160 28658018320 150812821409 301625642818 603251285636 754064107045 1206502571272 1508128214090 2413005142544 3016256428180 6032512856360 12065025712720