Search a number
-
+
13128410218752 = 283253107511221
BaseRepresentation
bin1011111100001011001000…
…1110100100000100000000
31201111001201110222112000100
42333002302032210010000
53210043441004000002
643531035225122400
72523332146426113
oct277026216440400
951431643875010
1013128410218752
114201800347724
12158045a029400
1374300839448a
143355c02da57a
1517b777b6911c
hexbf0b23a4100

13128410218752 has 108 divisors (see below), whose sum is σ = 38566640578284. Its totient is φ = 4293568081920.

The previous prime is 13128410218667. The next prime is 13128410218813. The reversal of 13128410218752 is 25781201482131.

13128410218752 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 8 + 410 + 2 + 187 + 52 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3381126598656 + 9747283620096 = 1838784^2 + 3122064^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13128410218698 and 13128410218707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53633499 + ... + 53877722.

It is an arithmetic number, because the mean of its divisors is an integer number (357098523873).

Almost surely, 213128410218752 is an apocalyptic number.

13128410218752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13128410218752 is an abundant number, since it is smaller than the sum of its proper divisors (25438230359532).

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

13128410218752 is a wasteful number, since it uses less digits than its factorization.

13128410218752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107511296 (or 107511279 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 13128410218752 in words is "thirteen trillion, one hundred twenty-eight billion, four hundred ten million, two hundred eighteen thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 53 64 72 96 106 128 144 159 192 212 256 288 318 384 424 477 576 636 768 848 954 1152 1272 1696 1908 2304 2544 3392 3816 5088 6784 7632 10176 13568 15264 20352 30528 40704 61056 122112 107511221 215022442 322533663 430044884 645067326 860089768 967600989 1290134652 1720179536 1935201978 2580269304 3440359072 3870403956 5160538608 5698094713 6880718144 7740807912 10321077216 11396189426 13761436288 15481615824 17094284139 20642154432 22792378852 27522872576 30963231648 34188568278 41284308864 45584757704 51282852417 61926463296 68377136556 82568617728 91169515408 102565704834 123852926592 136754273112 182339030816 205131409668 247705853184 273508546224 364678061632 410262819336 547017092448 729356123264 820525638672 1094034184896 1458712246528 1641051277344 2188068369792 3282102554688 4376136739584 6564205109376 13128410218752