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12115480168 = 23111715153633
BaseRepresentation
bin10110100100010001…
…11000111001101000
31011021100102011100201
423102020320321220
5144303030331133
65322112441544
7606142611421
oct132210707150
934240364321
1012115480168
115157966630
1224215492b4
1311b106839c
1482d0bc648
154ad981d7d
hex2d2238e68

12115480168 has 64 divisors (see below), whose sum is σ = 26413672320. Its totient is φ = 5148672000.

The previous prime is 12115480123. The next prime is 12115480187. The reversal of 12115480168 is 86108451121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199080 + ... + 252712.

It is an arithmetic number, because the mean of its divisors is an integer number (412713630).

Almost surely, 212115480168 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 12115480168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13206836160).

12115480168 is an abundant number, since it is smaller than the sum of its proper divisors (14298192152).

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

12115480168 is a wasteful number, since it uses less digits than its factorization.

12115480168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53818 (or 53814 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 37.

The spelling of 12115480168 in words is "twelve billion, one hundred fifteen million, four hundred eighty thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 11 17 22 34 44 68 88 136 151 187 302 374 604 748 1208 1496 1661 2567 3322 5134 6644 10268 13288 20536 28237 53633 56474 107266 112948 214532 225896 429064 589963 911761 1179926 1823522 2359852 3647044 4719704 7294088 8098583 10029371 16197166 20058742 32394332 40117484 64788664 80234968 89084413 137675911 178168826 275351822 356337652 550703644 712675304 1101407288 1514435021 3028870042 6057740084 12115480168