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27212395488 = 2531372069069
BaseRepresentation
bin11001010101111111…
…000011001111100000
32121020110220220212120
4121111333003033200
5421212333123423
620300132024240
71652230354665
oct312577031740
977213826776
1027212395488
11105a4762553
125335462080
1327489b7b85
14146212da6c
15a9403bee3
hex655fc33e0

27212395488 has 48 divisors (see below), whose sum is σ = 71953978320. Its totient is φ = 9004583936.

The previous prime is 27212395481. The next prime is 27212395531. The reversal of 27212395488 is 88459321272.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 27212395488.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27212395481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021383 + ... + 1047686.

It is an arithmetic number, because the mean of its divisors is an integer number (1499041215).

Almost surely, 227212395488 is an apocalyptic number.

It is an amenable number.

27212395488 is an abundant number, since it is smaller than the sum of its proper divisors (44741582832).

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

27212395488 is a wasteful number, since it uses less digits than its factorization.

27212395488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069219 (or 2069211 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The spelling of 27212395488 in words is "twenty-seven billion, two hundred twelve million, three hundred ninety-five thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 137 274 411 548 822 1096 1644 2192 3288 4384 6576 13152 2069069 4138138 6207207 8276276 12414414 16552552 24828828 33105104 49657656 66210208 99315312 198630624 283462453 566924906 850387359 1133849812 1700774718 2267699624 3401549436 4535399248 6803098872 9070798496 13606197744 27212395488