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27285259088 = 243157795339
BaseRepresentation
bin11001011010010101…
…000000001101010000
32121102120000202221102
4121122111000031100
5421340011242323
620311253443532
71654103606213
oct313225001520
977376022842
1027285259088
11106318a9aaa
1253559405a8
13275ab19c29
14146ba9977a
15a9a631328
hex65a540350

27285259088 has 40 divisors (see below), whose sum is σ = 54665667840. Its totient is φ = 13179525120.

The previous prime is 27285259081. The next prime is 27285259109. The reversal of 27285259088 is 88095258272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27285259081) 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 7 ways as a sum of consecutive naturals, for example, 238523 + ... + 333861.

It is an arithmetic number, because the mean of its divisors is an integer number (1366641696).

Almost surely, 227285259088 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 27285259088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27332833920).

27285259088 is an abundant number, since it is smaller than the sum of its proper divisors (27380408752).

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

27285259088 is a wasteful number, since it uses less digits than its factorization.

27285259088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95955 (or 95949 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 27285259088 in words is "twenty-seven billion, two hundred eighty-five million, two hundred fifty-nine thousand, eighty-eight".

Divisors: 1 2 4 8 16 31 62 124 248 496 577 1154 2308 4616 9232 17887 35774 71548 95339 143096 190678 286192 381356 762712 1525424 2955509 5911018 11822036 23644072 47288144 55010603 110021206 220042412 440084824 880169648 1705328693 3410657386 6821314772 13642629544 27285259088