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1300006512 = 243272714759
BaseRepresentation
bin100110101111100…
…1000011001110000
310100121012011200100
41031133020121300
510130300202022
6332555352400
744133605310
oct11537103160
93317164610
101300006512
11607902152
12303452700
1317943ac2c
14c4923440
15791e21ac
hex4d7c8670

1300006512 has 120 divisors (see below), whose sum is σ = 4174177280. Its totient is φ = 369982080.

The previous prime is 1300006489. The next prime is 1300006523. The reversal of 1300006512 is 2156000031.

1300006512 is a `hidden beast` number, since 13 + 0 + 0 + 0 + 0 + 651 + 2 = 666.

It is a super-2 number, since 2×13000065122 = 3380033862484812288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270789 + ... + 275547.

Almost surely, 21300006512 is an apocalyptic number.

1300006512 is a gapful number since it is divisible by the number (12) 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 1300006512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2087088640).

1300006512 is an abundant number, since it is smaller than the sum of its proper divisors (2874170768).

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

1300006512 is a wasteful number, since it uses less digits than its factorization.

1300006512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051 (or 5042 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1300006512 is about 36055.6030597187. The cubic root of 1300006512 is about 1091.3947054043.

Adding to 1300006512 its reverse (2156000031), we get a palindrome (3456006543).

The spelling of 1300006512 in words is "one billion, three hundred million, six thousand, five hundred twelve".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 271 336 504 542 813 1008 1084 1626 1897 2168 2439 3252 3794 4336 4759 4878 5691 6504 7588 9518 9756 11382 13008 14277 15176 17073 19036 19512 22764 28554 30352 33313 34146 38072 39024 42831 45528 57108 66626 68292 76144 85662 91056 99939 114216 133252 136584 171324 199878 228432 266504 273168 299817 342648 399756 533008 599634 685296 799512 1199268 1289689 1599024 2398536 2579378 3869067 4797072 5158756 7738134 9027823 10317512 11607201 15476268 18055646 20635024 23214402 27083469 30952536 36111292 46428804 54166938 61905072 72222584 81250407 92857608 108333876 144445168 162500814 185715216 216667752 325001628 433335504 650003256 1300006512