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13531143200 = 2552173672711
BaseRepresentation
bin11001001101000010…
…01101110000100000
31021221000020021221212
430212201031300200
5210202433040300
610114403205252
7656212551041
oct144641156040
937830207855
1013531143200
115813a83183
122757676828
13137843c213
1492510a8c8
15542dbc935
hex32684dc20

13531143200 has 144 divisors (see below), whose sum is σ = 35084254464. Its totient is φ = 5078323200.

The previous prime is 13531143181. The next prime is 13531143209. The reversal of 13531143200 is 234113531.

It is not an unprimeable number, because it can be changed into a prime (13531143209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4989845 + ... + 4992555.

It is an arithmetic number, because the mean of its divisors is an integer number (243640656).

Almost surely, 213531143200 is an apocalyptic number.

13531143200 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 13531143200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17542127232).

13531143200 is an abundant number, since it is smaller than the sum of its proper divisors (21553111264).

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

13531143200 is a wasteful number, since it uses less digits than its factorization.

13531143200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115 (or 3102 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 13531143200 its reverse (234113531), we get a palindrome (13765256731).

The spelling of 13531143200 in words is "thirteen billion, five hundred thirty-one million, one hundred forty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 32 34 40 50 68 80 85 100 136 160 170 200 272 340 367 400 425 544 680 734 800 850 1360 1468 1700 1835 2711 2720 2936 3400 3670 5422 5872 6239 6800 7340 9175 10844 11744 12478 13555 13600 14680 18350 21688 24956 27110 29360 31195 36700 43376 46087 49912 54220 58720 62390 67775 73400 86752 92174 99824 108440 124780 135550 146800 155975 184348 199648 216880 230435 249560 271100 293600 311950 368696 433760 460870 499120 542200 623900 737392 921740 994937 998240 1084400 1152175 1247800 1474784 1843480 1989874 2168800 2304350 2495600 3686960 3979748 4608700 4974685 4991200 7373920 7959496 9217400 9949370 15918992 16913929 18434800 19898740 24873425 31837984 33827858 36869600 39797480 49746850 67655716 79594960 84569645 99493700 135311432 159189920 169139290 198987400 270622864 338278580 397974800 422848225 541245728 676557160 795949600 845696450 1353114320 1691392900 2706228640 3382785800 6765571600 13531143200