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52071129288 = 23341931136429
BaseRepresentation
bin110000011111101011…
…100110000011001000
311222101221000102220000
4300133223212003020
51323120202114123
635530545003000
73522241203363
oct603753460310
9158357012800
1052071129288
11200a0882152
12a112623460
134baab8c909
14273d8230da
15154b607b43
hexc1fae60c8

52071129288 has 160 divisors (see below), whose sum is σ = 158477088000. Its totient is φ = 15912961920.

The previous prime is 52071129281. The next prime is 52071129329. The reversal of 52071129288 is 88292117025.

52071129288 is a `hidden beast` number, since 520 + 7 + 112 + 9 + 2 + 8 + 8 = 666.

It is a super-2 number, since 2×520711292882 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52071129281) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 313458 + ... + 449886.

It is an arithmetic number, because the mean of its divisors is an integer number (990481800).

Almost surely, 252071129288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52071129288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79238544000).

52071129288 is an abundant number, since it is smaller than the sum of its proper divisors (106405958712).

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

52071129288 is a wasteful number, since it uses less digits than its factorization.

52071129288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136497 (or 136484 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 52071129288 in words is "fifty-two billion, seventy-one million, one hundred twenty-nine thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 27 31 36 38 54 57 62 72 76 81 93 108 114 124 152 162 171 186 216 228 248 279 324 342 372 456 513 558 589 648 684 744 837 1026 1116 1178 1368 1539 1674 1767 2052 2232 2356 2511 3078 3348 3534 4104 4712 5022 5301 6156 6696 7068 10044 10602 12312 14136 15903 20088 21204 31806 42408 47709 63612 95418 127224 136429 190836 272858 381672 409287 545716 818574 1091432 1227861 1637148 2455722 2592151 3274296 3683583 4229299 4911444 5184302 7367166 7776453 8458598 9822888 10368604 11050749 12687897 14734332 15552906 16917196 20737208 22101498 23329359 25375794 29468664 31105812 33834392 38063691 44202996 46658718 50751588 62211624 69988077 76127382 80356681 88405992 93317436 101503176 114191073 139976154 152254764 160713362 186634872 209964231 228382146 241070043 279952308 304509528 321426724 342573219 419928462 456764292 482140086 559904616 642853448 685146438 723210129 839856924 913528584 964280172 1370292876 1446420258 1679713848 1928560344 2169630387 2740585752 2892840516 4339260774 5785681032 6508891161 8678521548 13017782322 17357043096 26035564644 52071129288